TATA CONSULTANCY SERVICES
TATA CONSULTANCY SERVICES
Experience Certainty
Test Date : 24 May 2008
Test Location : LBRCE,mylavaram
TCS Recruitment Rounds
Ø Written Test
Ø Technical Interview
Ø MR ( Managerial)
Ø HR Interview
WRITTEN TEST :( ONLINE TEST)
Contains 3 sections
1) Verbal (Synonyms – Antonyms - Comprehension Passages)
2) Quantitative Aptitude
3) Critical Reasoning
SECTION-1(Verbal- 30 questions - 20 min)
Ø Synonyms (Refer In GRE BARRONS 12th Edition )
Ø Antonyms (Refer In GRE BARRONS 12th Edition (page no -126))
Ø Passage completion
Some of the previous questions in quant .Go through these models and try
to solve them. They will give same models but they change the data.
SECTION: 2(QUANT- 38 questions - 40 min )
1) If log 0.317=0.3332 and log 0.318=0.3364 then find log 0.319 =
Sol: Given log 0.317=0.3332 and log 0.318=0.3364
Then
Log 0.319=log0.318+ (log0.318-log0.317)
=0.3396
2) A box of 150 packets consists of 1kg packets and 2kg packets. Total
weight of box is 264kg. How many 2kg packets are there?
Sol: Given x= 2 kg Packs
y= 1 kg packs
=> x + y = 150 .......... Eqn 1
=> 2x + y = 264 .......... Eqn 2
On solving these two equations
x = 114
By using equation 1
114 + y = 150
=> y = 36
=>Number of 2 kg Packs = 114.
3) My flight takes of at 2am from a place at 18N 10E and landed 10 Hrs
later at a place with coordinates 36N70W. What is the local time when my
plane landed?
a) 6:00 am b) 6:40am c) 7:40 d) 7:00 e) 8:00
Sol: (Hint: Every 1 deg longitude is equal to 4 minutes. If west to east
add time else subtract time)
Ans: 8:00
4) A Flight takes off at 2 A.M from northeast direction and travels for
11 hours to reach the destination, which is in northwest direction.
Given the latitude and longitude of source and destination. Find the
local time of destination when the flight reaches there?
Ans: 7 AM (or) 1 PM
5) A moves 3 kms east from his starting point. He then travels 5 kms
north. From that point he moves 8 kms to the east. How far is A from his
starting point?
Ans: 13 kms
6) Aeroplane is flying at a particular angle and latitude, after some
time latitude is given. (8 hrs later), u r asked to find the local time
of the place.
7) An Aeroplane starts from A (SOME LATITUDE IS GIVEN ACCORDING TO
PLACE).At 2 AM local time to B (SOME LATITUDE). Traveling time is 10
Hours. What is the local time of B when it reaches B?
8) A plane moves from 9°N40°E to 9°N40°W. If the plane starts at 10 am
and takes 8 hours to reach the destination, find the local arrival time.
Sol: Since it is moving from east to west longitude we need to add both
Ie, 40+40=80
Multiply the ans by 4
=>80*4=320min
Convert this min to hours i.e., 5hrs 33min
It takes 8hrs totally. So 8-5hr 30 min=2hr 30min
So the ans is 10am+2hr 30 min
Ans: 12:30 it will reach
9) The size of the bucket is N kb. The bucket fills at the rate of 0.1
kb per millisecond. A programmer sends a program to receiver. There it
waits for 10 milliseconds. And response will be back to programmer in 20
milliseconds. How much time the program takes to get a response back to
the programmer, after it is sent?
Sol: The time being taken to fill the bucket.
After reaching program it waits there for 10ms and back to the
programmer in
20 ms. then total time to get the response is
20ms +10 ms=30ms
Ans: 30ms
10) A file is transferred from one location to another in ‘buckets’. The
size of the bucket is 10 kilobytes. Eh bucket gets filled at the rate of
0.0001 kilobytes per millisecond. The transmission time from sender to
receiver is 10 milliseconds per bucket. After the receipt of the bucket
the receiver sends an acknowledgement that reaches sender in 100
milliseconds. Assuming no error during transmission, write a formula to
calculate the time taken in seconds to successfully complete the
transfer of a file of size N kilobytes.
Ans: (n/1000)*(n/10)*10+ (n/100).... (Not 100% sure)
11)A fisherman's day is rated as good if he catches 9 fishes ,fair if 7
fishes and bad if 5 fishes .He catches 53 fishes in a week n had all
good, fair n bad days in the week. So how many good, fair n bad days did
the fisher man had in the week.
Sol:
good days means --- 9 fishes so 53/9=4(remainder=17) if u assume 5 then
there is no chance for bad days.
fair days means ----- 7 fishes so remaining 17 --- 17/7=1(remainder=10)
if u assume 2 then there is no chance for bad days.
bad days means -------5 fishes so remaining 10---10/5=2days.
4*9=36
7*1=7
2*5=10
36+7+10=53...
Ans: 4 good, 1 fair, 2bad. ==== total 7 days.
12) x+y+z=7--------- eq1
9*x+7*y+5*z=53 -------eq2
Sol:
Multiply eq 1 by 9,
9*x+9*y+9*z=35 -------------eq3
From eq2 and eq3
2*y+4*z=10-----eq4
Since all x, y and z are integer i should put a integer value of y such
that z sud be integer in eq 4.....And there will be two value y=1 or 3
then z = 2 or 1 from eq 4
For first y=1,z=2 then from eq1 x= 4
So 9*4+1*7+2*5=53.... Satisfied
Now for second y=3 z=1 then from eq1 x=3
So 9*3+3*7+1*5=53 ......satisfied
So finally there are two solution of this question
Ans:(x,y,z)=(4,1,2) and (3,3,1)...
13) Y catches 5 times more fishes than X. If total number of fishes
caught by X and Y is 42, then number of fishes caught by X?
Sol: let no. of fish x catches=p
No. caught by y =r
r=5p.
Given r+p=42
Then p=7, r=35
14) Three companies are working independently and receiving the savings
20%, 30%, 40%. If the companies work combine, what will be their net
savings?
Sol: Suppose total income is 100
So amount x is getting is 80
y is 70
z =60
Total=210
But total money is 300
300-210=90
So they are getting 90 rs less
90 is 30% of 300 so they r getting 30% discount
15) The ratio of incomes of C and D is 3:4.the ratio of their
expenditures is 4:5.Find the ratio of their savings if the savings of C
is one fourths of his income?
Sol: incomes: 3:4
Expenditures: 4:5
3x-4y=1/4(3x)
12x-16y=3x
9x=16y
y=9x/16
(3x-4(9x/16))/ ((4x-5(9x/16)))
Ans: 12/19
16)If A can copy 50 pages in 10 hours and A and B together can copy 70
pages in 10 hours, how much time does B takes to copy 26 pages?
Sol: A can copy 50 pages in 10 hrs.
=>A can copy 5 pages in 1hr. (50/10)
Now A & B can copy 70 pages in 10hrs.
Thus, B can copy 90 pages in 10 hrs. [Eqn. is (50+x)/2=70, where x-->
no. of pages B can copy in 10 hrs.]
So, B can copy 9 pages in 1hr.
Therefore, to copy 26 pages B will need almost 3hrs.
Since in 3hrs B can copy 27 pages
17) A can copy 50 papers in 10 hours while both A & B can copy 70 papers
in 10 hours. Then for how many hours required for B to copy 26 papers?
ANS: 13
18) A is twice efficient than B. A and B can both work together to
complete a work in 7 days. Then find in how many days A alone can
complete the work?
ANS: 10.5 (11)
19) A finish the work in 10 days. B is 60% efficient than A. So how days
does B take to finish the work?
Ans: 100/6 (4 days)
20) A finishes the work in 10 days & B in 8 days individually. If A
works for only 6 days then how many days should B work to complete A's
work?
Ans: 3.2 days (4 days)
21) A man, a woman, and a child can do a piece of work in 6 days. Man
only can do it in 24 days. Woman can do it in 16 days and in how many
days child can do the same work?
Ans: 16
22) If 20 men take 15 days to complete a job, in how many days can 25
men finish that work?
Ans. 12 days
23) One fast typist type some matter in 2hr and another slow typist type
the same matter in 3hr. if both do combine in how much time they will
finish.
Ans: 1hr 12min
24) A man shapes 3 cardboards in 50 minutes, how many types of cardboard
does he shape in 5 hours?
Ans: 18cardboards
25) A work is done by two people in 24 min. one of them can do this work
a lonely in 40 min. how much time required to do the same work for the
second person.
Sol: (A+B) can do the work in = 1/24 min.
A alone can do the same work in = 1/40 min.
B alone can do the same work in = (A+B)’s – A’s = 1/24 – 1/40 = 1/60
=> B can do the same work in = 60 min
Ans: 60 min
26) A can do a piece of work in 20 days, which B can do in 12 days. In 9
days B does ¾ of the work. How many days will A take to finish the
remaining work?
27) Anand finishes a work in 7 days; Bittu finishes the same job in 8
days and Chandu in 6 days. They take turns to finish the work. Anand on
the first day, Bittu on the second and Chandu on the third day and then
Anand again and so on. On which day will the work get over?
A) 3rd b) 6th c) 9th d) 7th
28) 3 men finish painting a wall in 8 days. Four boys do the same job in
7 days. In how many days will 2 men and 2 boys working together paint
two such walls of the same size?
A) 6 6/13 days
B) 3 3/13 days
C) 9 2/5 days
D) 12 12/13 days
29) what's the answer for that?
A, B and C are 8 bit no's. They are as follows:
A -> 1 1 0 0 0 1 0 1
B -> 0 0 1 1 0 0 1 1
C -> 0 0 1 1 1 0 1 0 (- =minus, u=union)
Find ((A - C) u B) =?
Sol: We have to find (A-C) U B
To find A-C, We will find 2's compliment of C and them add it with A,
That will give us (A-C)
2's compliment of C=1's compliment of C+1
=11000101+1=11000110
A-C=11000101+11000110
=10001001
Now (A-C) U B is .OR. Logic operation on (A-C) and B
10001001 .OR. 00110011
The answer is = 10111011,
Whose decimal equivalent is 187.
30) A = 10010001
B = 01101010
C = 10010110
(AuB)nC =? [(A union B) intersection C =?]
31) A =0 0 0 0 1 1 1 1
B =0 0 1 1 0 0 1 1
C =0 1 0 1 0 1 0 1
( A U B ) n C Find the fourth row, having the bit pattern as an integer
in an 8-bit computer, and express the answer in its decimal value.
Ans: 29
32) A, B and C are 8 bit nos. They are as follows:
A 1 1 0 1 1 0 1 1
B 0 1 1 1 1 0 1 0
C 0 1 1 0 1 1 0 1
Find ( (A-B) u C )=?
Hint: 109 A-B is {A} - {A n B}
Ans: 0 1 1 1 1 1 1 1 (DB)
33) If A, B and C are the mechanisms used separately to reduce the
wastage of fuel by 30%, 20% and 10%. What will be the fuel economy if
they were used combined.
Ans: 20%
34) In the class of 40 students, 30 speak Hindi and 20 speak English.
What is the lowest possible number of students who speak both the
languages?
(a) 5 (b) 20 (c) 15 (d) 10 (e) 30
35) In a two-dimensional array, X (9, 7), with each element occupying 4
bytes of memory, with the address of the first element X (1, 1) is 3000,
find the address of
X (8, 5).
Sol: [HINT~ Formula=Base Add + Byte reqd {N (i-1) + (j-1)}
Where,
Base Add=3000;
Byte reqd=4;
N=no of columns in array=7;
i=8; j=5;
IN ROW MAJOR ORDER]
Ans: 3212
36) If the vertex (5, 7) is placed in the memory. First vertex (1, 1)’s
address is 1245 and then address of (5, 7) is ----------
Ans: 1279
37) A 2D array is declared as A [9, 7] and each element requires 2 byte.
If A [1, 1] is stored in 3000. Find the memory of A [8, 5]?
Ans: 3106
38) One circular array is given (means the memory allocation takes place
like a circular fashion) dimension (9X7) .starting address is 3000.find
the address of (2, 3)
Ans: 555
39) The size of a program is N. And the memory occupied by the program
is given by M = square root of 100N. If the size of the program is
increased by 1% then how much memory now occupied?
Sol: N is increased by 1%
Therefore new value of N=N + (N/100)
=101N/100
M=sqrt (100 * (101N/100))
Hence, we get
M=sqrt (101 * N)
Ans: 0. 5 %( =SQRT 101N)
40) A bus started from bus stand at 8.00a m and after 30 min staying at
destination, it returned back to the bus stand. The destination is 27
miles from the bus stand. The speed of the bus 50 percent fast speed. At
what time it retur4ns to the bus stand.
Sol: (this is the step by step solution :)
A bus cover 27 mile with 18 mph in =27/18= 1 hour 30 min.
And it wait at stand =30 min.
After this speed of return increase by 50% so 50%of 18 mph=9mph
Total speed of returning=18+9=27
Then in return it take 27/27=1 hour
Then total time in journey=1+1:30+00:30 =3 hour
So it will come at 8+3 hour=11 a.m.
So Ans==11 a.m
41) A Flight takes off at 2 A.M from northeast direction and travels for
11 hours to reach the destination which is in North West direction.
Given the latitude and longitude of source and destination. Find the
local time of destination when the flight reaches there?
Ans: 7 AM or 1.00 PM
42) My flight takes of at 2am from a place at 18N 10E and landed 10 Hrs
later at a place with coordinates 36N70W. What is the local time when my
plane landed?
a) 6:00 am b) 6:40am c) 7:40 d) 7:00 e) 8:00
(Hint: Every 1 deg longitude is equal to 4 minutes. If west to east add
time else subtract time)
Ans: 8:00
43) A moves 3 kms east from his starting point. He then travels 5 kms
north. From that point he moves 8 kms to the east. How far is A from his
starting point?
Ans: 13 kms
44) A plane moves from 9°N40°E to 9°N40°W. If the plane starts at 10 am
and takes 8 hours to reach the destination, find the local arrival time.
45) In Madras , temperature at noon varies according to -t^2/2 + 8t + 3,
where t is elapsed time. Find how much temperature more or less in 4pm
to 9pm. (May be we can solve it by Definite Integration. Check any way}
Ans: at 9 pm 7.5 more or 385.8 (DB)
46) For Temperature a function is given according to time: ((t**2)/6) +
4t +12 what is the temperature rise or fall between 4.AM TO 9 AM
Sol: In equation first put t=9,
We will get 34.5........................... (1)
Now put t=4,
We will get 27.............................. (2)
So Ans=34.5-27
=7.5
47) For Temperature a function is given according to time: ((t**2)/6) +
4t +12 what is the temperature rise or fall between 5 PM to 8 PM
48) Low temperature at the night in a city is 1/3 more than 1/2 high as
higher temperature in a day. Sum of the low tem. And highest temp is 100
degrees. Then what is the low temp?
Sol: Let highest temp be x
So low temp=1/3 of x of 1/2 of x plus x/2 i.e. x/6+x/2
Total temp=x+x/6+x/2=100
Therefore, x=60
Lowest temp is 40
Ans :( 40 deg.)
49) A person had to multiply two numbers. Instead of multiplying by 35,
he multiplied by 53and the product went up by 540. What was the raised
product?
a) 780
b) 1040
c) 1590
d) 1720
Sol: x*53-x*35=540=> x=30 therefore, 53*30=1590
Ans: 1590
50) How many positive integer solutions does the equation 2x+3y = 100
have?
a) 50
b) 33
c) 16
d) 35
Sol: Given 2x+3y=100, take l.c.m of 'x' coeff and 'y' coeff i.e. l.c.m
of 2,3 ==6then divide 100 with 6 , which turns out 16 hence answer is
16short cut formula--- constant / (l.cm of x coeff and y coeff)
51) The total expense of a boarding house is partly fixed and partly
variable with the number of boarders. The charge is Rs.70 per head when
there are 25 boarders and Rs.60 when there are 50 boarders. Find the
charge per head when there are 100 boarders.
a) 65
b) 55
c) 50
d) 45
Sol: let a = fixed cost and
k = variable cost and n = number of boarders
Total cost when 25 boarders c = 25*70 = 1750 i.e. 1750 = a + 25k
Total cost when 50 boarders c = 50*60 = 3000 i.e. 3000 = a + 50k
Solving above 2 eqns, 3000-1750 = 25k i.e. 1250 = 25k i.e. k = 50
Therefore, substituting this value of k in either of above 2 eqns we get
a = 500 (a = 3000-50*50 = 500 or a = 1750 - 25*50 = 500)
So total cost when 100 boarders = c = a + 100k = 500 + 100*50 = 5500
So cost per head = 5500/100 = 55
52) Amal bought 5 pens, 7 pencils and 4 erasers. Rajan bought 6 pens, 8
erasers and 14 pencils for an amount which was half more than what Amal
had paid. What % of the total amount paid by Amal was paid for pens?
a) 37.5%
b) 62.5%
c) 50%
d) None of these
Sol: Let, 5 pens + 7 pencils + 4 erasers = x rupees
So 10 pens + 14 pencils + 8 erasers = 2*x rupees
Also mentioned, 6 pens + 14 pencils + 8 erasers = 1.5*x rupees
So (10-6) = 4 pens = (2-1.5) x rupees
So 4 pens = 0.5x rupees => 8 pens = x rupees
So 5 pens = 5x/8 rupees = 5/8 of total (note x rupees is total amt paid
by
Amal) i.e. 5/8 = 500/8% = 62.5%
Ans: 62.5%
53) I lost Rs.68 in two races. My second race loss is Rs.6 more than the
first race. My friend lost Rs.4 more than me in the second race. What is
the amount lost by my friend in the second race?
Sol: x + x+6 = rs 68
2x + 6 = 68
2x = 68-6
2x = 62
x=31
x is the amt lost in I race
x+ 6 = 31+6=37 is lost in second race
Then my friend lost 37 + 4 = 41 Rs
Ans: 41 Rs
54) A face of the clock is divided into three parts. First part hours
total is equal to the sum of the second and third part. What is the
total of hours in the bigger part?
Sol: The clock normally has 12 hr
Three parts x, y, z
x+y+z=12
x=y+z
2x=12
x=6
So the largest part is 6 hrs
Ans: 6 hrs
55) (1- 1/6) (1-1/7).... (1- (1/ (n+4))) (1-(1/ (n+5))) = ?
Sol: Leaving the first numerator and last denominator, all the numerator
and denominator will cancelled out one another.
Ans: 5/ (n+5)
56) Ten boxes are there. Each ball weighs 100 gms. One ball is weighing
90 gms.
i) If there are 3 balls (n=3) in each box, how many times will it take
to find 90 gms ball? ii) Same question with n=10
iii) Same question with n=9
Sol: The chances are
When n=3
(i) nC1= 3C1 =3 for 10 boxes.. 10*3=30
(ii) nC1=10C1=10 for 10 boxes ....10*10=100
(iii) nC1=9C1=9 for 10 boxes.....10*9=90
57) With 4/5 full tank vehicle travels 12 miles, with 1/3 full tank how
much distance travels?
Sol: 4/5 full tank= 12 mile
1 full tank= 12/ (4/5)
1/3 full tank= 12/ (4/5)*(1/3) = 5 miles
Ans: 5 miles
58) Wind flows 160 miles in 330min.for 80 miles how much time required
160 miles?
Sol: 1 mile = 330/160
80 miles= (330*80)/160=165 min.
Ans: 165 min.
59) A person was fined for exceeding the speed limit by 10mph.another
person was also fined for exceeding the same speed limit by twice the
same if the second person was traveling at a speed of 35 mph. find the
speed limit
Sol :( x+10) =(x+35)/2
Solving the eqn we get x=15
Ans: 15
60) A sales person multiplied a number and get the answer is 3 instead
of that number divided by 3.what is the answer he actually has to get.
Sol: Assume 1
1* 3 = 3
1*1/3=1/3
So he has to got 1/3
Ans: 1/3
61) The size of the bucket is N kb. The bucket fills at the rate of 0.1
kb per millisecond. A programmer sends a program to receiver. There it
waits for 10 milliseconds. And response will be back to programmer in 20
milliseconds. How much time the program takes to get a response back to
the programmer, after it is sent?
Ans: 30 milliseconds
62) A person who decided to go weekend trip should not exceed 8 hours
driving in a day average speed of forward journey is 40 mph due to
traffic in Sundays the return journey average speed is 30 mph. How far
he can select a picnic spot.
Ans: Between 120 and 140 miles
63) Car is filled with four and half gallons of oil for full round trip.
Fuel is taken 1/4 gallons more in going than coming. What is the fuel
consumed in coming up.
Sol: Let fuel consumed in coming up is x.
Thus equation is: x+1.25x=4.5
Ans: 2gallons
64) 40% employees are male if 60% of supervisors are male so for 100% is
26.4%so the probability is …………..
Ans: 0.264
65) Gavaskar average in first 50 innings was 50. After the 51st innings
his average was 51 how many runs he made in the 51st innings
Sol: first 50 ings.- run= 50*50=2500
51st ings. - Avg 51. So total run =51*51=2601.
So run scored in that ings=2601-2500=101 runs.
Ans: 101 runs
66) Hansie made the following amounts in seven games of cricket in India
: Rs.10, Rs.15, Rs.21, Rs.12, Rs.18, Rs.19 and Rs.17 (all figures in
crores of course).Find his average earnings.
Ans: Rs.16 crore
67) Average of 5 numbers is -10 sum of 3 numbers is 16, what is the
average of other two numbers?
Ans: -33
68) If A, B and C are the mechanisms used separately to reduce the
wastage of fuel by 30%, 20% and 10%. What will be the fuel economy if
they were used combined. Ans: 20%
69) In 80 coins one coin is counterfeit what is minimum number of
weighing to find out counterfeit coin
Sol: the minimum number of weightings needed is just 5.as shown below
(1) 80->30-30
(2) 15-15
(3) 7-7
(4) 3-3
(5) 1-1
Ans: 5.
70) 2 oranges, 3 bananas and 4 apples cost Rs.15. 3 oranges, 2 bananas,
and 1 apple costs Rs 10. What is the cost of 3 oranges, 3 bananas and 3
apples?
Sol: 2x+3y+4z=15
3x+2y+z=10
Adding
5x+5y+5z=25
x+y+z=5 that is for 1 orange, 1 banana and 1 apple requires 5Rs.
So for 3 orange, 3 bananas and 3 apples require 15Rs.
i.e. 3x+3y+3z=15
Ans: 15
71) In 8*8 chess board what is the total number of squares refers odele
discovered that there are 204 squares on the board .We found that you
would add the different squares
= 1 + 4 + 9 + 16+ 25 + 36 + 49 + 64. =204
Also in 3*3 tic tac toe board what is the total no of squares
Ans: 14 i.e. 9+4(bigger ones) +1 (biggest one)
If you get 100*100 board just use the formula the formula for the sum of
the first n perfect squares is
n x (n + 1) x (2n + 1)
______________________
6
72) One fast typist type some matter in 2hr and another slow typist type
the same matter in 3hr. If both do combine in how much time they will
finish.
Sol: Faster one can do 1/2 of work in one hour slower one can do 1/3 of
work in one hour both they do (1/2+1/3=5/6) the work in one hour. So
work will b finished in 6/5=1.2 hour
i e 1 hour 12 min.
Ans: 1 hour 12 min.
73)If Rs20/- is available to pay for typing a research report & typist A
produces 42 pages and typist B produces 28 pages. How much should typist
A receive?
Sol: Find 42 % of 20 rs with respect to 70 (i.e. 28 + 42)
==> (42 * 20)/70 ==> 12 Rs
Ans: 12 Rs
74) In some game 139 members have participated every time one fellow
will get bye what is the number of matches to choose the champion to be
held?
Ans: 138 matches
(Explanation: since one player gets a bye in each round, he will reach
the finals of the tournament without playing a match.
Therefore 137 matches should be played to determine the second finalist
from the remaining 138 players (excluding the 1st player)
Therefore to determine the winner 138 matches should be played.)
75) ONE RECTANGULAR PLATE WITH LENGTH 8INCHES, BREADTH 11 INCHES AND 2
INCHES THICKNESS IS THERE.WHAT IS THE LENGTH OF THE CIRCULAR ROD WITH
DIAMETER 8 INCHES AND EQUAL TO VOLUME OF RECTANGULAR PLATE?
Sol: Vol. of rect. plate= 8*11*2=176
Area of rod= (22/7)*(8/2)*(8/2) = (352/7)
Vol. of rod=area*length=vol. of plate
So length of rod= vol of plate/area=176/ (352/7) =3.5
Ans: 3.5
76) One tank will fill in 6 minutes at the rate of 3cu ft /min, length
of tank is 4 ft and the width is 1/2 of length, what is the depth of the
tank?
Ans: 3 ft 7.5 inches
77) A power unit is there by the bank of the river of 750 meters width.
A cable is made from power unit to power a plant opposite to that of the
river and 1500mts away from the power unit. The cost of the cable below
water is Rs. 15/- per meter and cost of cable on the bank is Rs.12/- per
meter. Find the total of laying the cable.
Ans: 1000 (24725 - cost) 20250
Ans: Rs. 22,500 (hint: the plant is on the other side of the plant i.e.
it is not on the same side as the river)
78) The cost of one pencil, two pens and four erasers is Rs.22 while the
cost of five pencils, four pens and two erasers is Rs.32.How much will
three pencils, three pens and three erasers cost?
Sol :( let x b pencil, y b pen and z b eraser... u get x+2y+4z=22 and
5x+4y+2z=32 add 6x+6y+6z=54 div by 2 you get 27)
Ans: 27
79) A man has to get air-mail. He starts to go to airport on his
motorbike. Plane comes early and the mail is sent by a horse-cart. The
man meets the cart in the middle after half an hour. He takes the mail
and returns back, by doing so, he saves twenty minutes. How early did
the plane arrive?
Sol: Assume he started at 1:00, so at 1:30 he met cart .He returned home
at 2:00.so it took him 1 hour for the total journey. By doing this he
saved 20 min. So the actual time if the plane is not late is 1 hour and
20 min. So the actual time of plane is at 1:40.The cart traveled a time
of 10 min before it met him. So the plane is 10 min early.
Ans: 10 min
80) Ram singh goes to his office in the city every day from his suburban
house. His driver Mangaram drops him at the railway station in the
morning and picks him up in the evening. Every evening Ram singh reaches
the station at 5 o'clock. Mangaram also reaches at the same time. One
day Ram singh started early from his office and came to the station at 4
o'clock. Not wanting to wait for the car he starts walking home.
Mangaram starts at normal time, picks him up on the way and takes him
back house, half an hour early. How much time did Ram singh walked?
81) 2 trees are there. One grows at 3/5 of the other. In 4 years total
growth of the trees is 8 ft. what growth will smaller tree have in 2
years.
Sol: THE BIG TREE GROWS 8FT IN 4 YEARS=>THE BIG TREE GROWS 4FT IN 2
YEARS.WHEN WE DIVIDE 4FT/5=.8*3=>2.4
4 (x+ (3/5) x) =88x/5=2x=5/4
After 2 years x= (3/5)*(5/4)*2 =1.5 (less than 2 feet)
82) There is a six digit code. Its first two digits, multiplied by 3
gives all ones. And the next two digits multiplied by 6 give all twos.
Remaining two digits multiplied by 9 gives all threes. Then what is the
code?
Sol: Assume the digit xx xx xx (six digits)
First Two digit xx * 3=111
xx =111/3=37
(First two digits of 1 is not divisible by 3 so we can use 111)
Second Two digit xx*6=222
xx=222/6=37
(First two digits of 2 is not divisible by 6 so we can use 222)
Third Two digit xx*9=333
xx=333/9=37
(First two digits of 3 is not divisible by 9 so we can use 333)
83) There are 4 balls and 4 boxes of colors yellow, pink, red and green.
Red ball is in a box whose color is same as that of the ball in a yellow
box. Red box has green ball. In which box you find the yellow ball?
Sol: Yellow box can have either of pink/yellow balls.
if we put a yellow ball in "yellow" box then it would imply that
"yellow" is also the color of the box which has the red ball(because
according 2 d question,d box of the red ball n the ball in the yellow
box have same color)
Thus this possibility is ruled out...
Therefore the ball in yellow box must be pink, hence the color of box
contain in red ball is also pink....
=>the box color left out is "green", which is allotted to the only box
left, the one which has yellow ball.
Ans: green
84) A bag contains 20 yellow balls, 10 green balls, 5 white balls, 8
black balls, and 1 red ball. How many minimum balls one should pick out
so that to make sure the he gets at least 2 balls of same color.
Sol: suppose he picks 5 balls of all different colors then when he picks
up the sixth one, it must match any on of the previously drawn ball
color. Thus he must pick 6 balls
Ans: he should pick 6 balls totally.
85) WHAT IS THE NUMBER OF ZEROS AT THE END OF THE PRODUCT OF THE NUMBERS
FROM 1 TO 100?
Sol: For every 5 in unit place one zero is added
so between 1 to 100 there are 10 nos like 5,15,25,..,95 which has 5 in
unit place.
Similarly for every no divisible by 10 one zero is added in the answer
so between 1 to 100 , 11 zeros are added
For 25, 50, 75 3 extra zeros are added
So total no of zeros are 10+11+3=24
86) There are two numbers in the ratio 8:9. If the smaller of the two
numbers is increased by 12 and the larger number is reduced by 19 thee
the ratio of the two numbers is 5:9.
Find the larger number?
Sol: 8x: 9x initially
8x+ 12: 9x - 19 = 5x: 9x
8x+12 = 5x
-> x = 4
9x = 36 (NOT SURE ABOUT THE ANSWER)
87) There are three different boxes A, B and C. Difference between
weights of A and B is 3 kgs. And between B and C is 5 kgs. Then what is
the maximum sum of the differences of all possible combinations when two
boxes are taken each time
Sol: A-B = 3
B-c = 5
A-c = 8 so sum of diff = 8+3+5 = 16 kgs
88) A and B are shooters and having their exam. A and B fall short of 10
and 2 shots respectively to the qualifying mark. If each of them fired
at least one shot and even by adding their total score together, they
fall short of the qualifying mark, what is the qualifying mark?
Sol: Because each had at least 1 shot done so 10 + 1 = 11
And 9 + 2 = 11
So the ans is 11
89) A, B, C, and D tells the following times by looking at their
watches. A tells it is 3 to 12. B tells it is 3 past 12 . C tells it is
12:2. D tells it is half a dozen too soon to 12. No two watches show the
same time. The difference between the watches is 2,3,4,5 respectively.
Whose watch shows maximum time?
Sol: A shows 11:57, B shows 12:03, C shows 12:02 and D shows 11:06
therefore,
Max time is for B
90) Falling height is proportional to square of the time. One object
falls 64cm in 2sec than in 6sec from how much height the object will
fall.
Sol: The falling height is proportional to the square of the time.
Now, the falling height is 64cm at 2sec
So, the proportional constant is=64/ (2*2) =16;
So, at 6sec the object fall maximum (16*6*6) cm=576cm;
Now, the object may be situated at any where.
If it is>576 only that time the object falling 576cm within 6sec
.Otherwise if it is situated<576 then it fall only that height at 6sec.
91) Last year pandit was thrice his sister's age. Next year he is only
twice her age. After 5 years what is pandit's age.
a) 2 b) 12 c) 11 d) 14
Ans: b
92) Jalia is twice older than qurban. If jalia was 4 years younger,
qurban was 3 years older their diff. between their ages is 12 years what
is the sum of their ages
a) 67 b) 57 c) 36 d) none
Ans: b
93) Fathers age is 5 times his son's age. 4 years back the father was 9
times older than son. Find the fathers' present age.
Ans. 40 years
94) Joe’s father will be twice his age 6 years from now. His mother was
twice his age 2 years before. If Joe will be 24 two years from now, what
is the difference between his father's and mother's age?
a) 4 b) 6 c) 8 d) 10
95) Anand finishes a work in 7 days; Bittu finishes the same job in 8
days and Chandu in 6 days. They take turns to finish the work. Anand on
the first day, Bittu on the second and Chandu on the third day and then
Anand again and so on. On which day will the work get over?
a) 3rd
b) 6th
c) 9th
d) 7th
In d 1st day Anand does 1/7th of total work
Similarly,
Bithu does 1/8th work in d 2nd day
Hence at the end of 3 days, work done = 1/7+1/8+1/6=73/168
Remaining work = (168-73)/168 = 95/168
Again after 6 days of work, remaining work is = (95-73)/168 = 22/168
And hence Anand completes the work on 7th day.
Ans is d) 7th day
96) If TAFJHH is coded as RBEKGI then RBDJK can be coded as ---------
Ans: qcckj
97) BFGE CODED AS CEHD THEN CODE PVHDJ
Ans: QUICK
98) Find the no. of Y‘s followed by W but that is not followed by Z.
Y W R U D D Y W Z ...............
99) If VXUPLVH is written as SURMISE, what is SHDVD ?
Ans. PEASA
(Hint: in the first word, the alphabets of the jumbled one are three
alphabets after the corresponding alphabet in the word SURMISE. S = V-3,
similarly find the one for SHDVD)
100) If DDMUQZM is coded as CENTRAL then RBDJK can be coded as -----
Ans. QCEIL
(Hint: Write both the jumbled and the coded word as a table, find the
relation between the corresponding words, i.e. C= D-1, N=M+1 & so on)
101) In the word ECONOMETRICS, if the first and second, third and forth,
forth and fifth, fifth and sixth words are interchanged up to the last
letter, what would be the tenth letter from right?
Ans. word is CENOMOTEIRSC tenth word is R
102) If D_MUQZM is coded as CENTRAL then RBDJK can be coded as
103) In a certain format TUBUJPO is coded as STATION. The code of which
string is FILTER?
104) What is the code formed by reversing the First and second letters,
the third and fourth letters and so on of the string SIMULTANEOUSLY?
105) In the word ORGANISATIONAL, by reversing if the first and second
the third and fourth letters and so on of the string?
106) A power unit is there by the bank of the river of 750 meters width.
A cable is made from power unit to power a plant opposite to that of the
river and 1500mts away from the power unit. The cost of the cable below
water is Rs. 15/- per meter and cost of cable on the bank is Rs.12/- per
meter. Find the total of laying the cable.
Ans: 1000 (24725 - cost) 20250
Ans: Rs. 22,500 (hint: the plant is on the other side of the plant i.e.
it is not on the same side as the river)
107) The cost of one pencil, two pens and four erasers is Rs.22 while
the cost of five pencils, four pens and two erasers is Rs.32.How much
will three pencils, three pens and three erasers cost?
Ans: 27
108) A shopkeeper bought a watch for Rs.400 and sold it for Rs.500.What
is his profit percentage?
Ans. 25%
109) What percent of 60 is 12?
Ans. 20%
110) Three men goes to a hotel to stay, the clerk says $30 per room/day
so all the three plans to stay in one room so each pays $10.After some
time the clerk realizes that he made a mistake of collecting $30 but the
room cost only $25, there fore he decides to return $5 to them so he
calls the room boy and gives him $5 asking him to return. The room boy
keeps $2 with him and he returns only $3($1 for each).Now Totally all
have paid $9 each($27)+room boy $2 which is equal to $27.where did $1
go, who has made the mistake?
111) Two pencils cost 8 cents. Then 5 pencils cost?
Ans :( 20 cents)
112)Which is more economical of the following
a)2kg -- 30/- b)8kg -- 160/- c)5kg -- 80/-
113)Satish earns 240 weekly.12% of big amount + earning weekly = 540
what is the big amount
a)3200 b)3600 c)2500 d)1000
Ans: c
114) Bhanu spends 30% of his income on petrol on scooter. ¼ of the
remaining on house rent and the balance on food. If he spends Rs.300 on
petrol then what is the expenditure on house rent? a) Rs.525 b) Rs.1000
c) Rs.675 d) Rs.175
Ans: 175
115) A sporting goods store ordered an equal number of white and yellow
balls. The tennis ball company delivered 45 extra white balls, making
the ratio of white balls to yellow balls 1/5: 1/6. How many white tennis
balls did the store originally order for?
a) 450 b) 270 c) 225 d) None of these
Ans: 180
116) There is a circular pizza with negligible thickness that is cut
into 'x' pieces by 4 straight line cuts. What is the maximum and minimum
value of 'x' respectively?
a) 12, 6 b) 11, 6 c) 12, 5 d) 11, 5
117) Match the following:
1. Male - Boy ---> a. A type of
2. Square - Polygon ---> b. A part of
3. Roof - Building ---> c. Not a type of
4. Mushroom - Vegetables ---> d. A superset of
Ans: 1- d, 2- a, 3- b, 4- c
118) Match the following.
1. Brother - sister ---> a. Part of
2. Alsatian - dog ---> b. Sibling
3. Sentence - paragraph ---> c. Type of
4. Car - steering ---> d. Not a type of
Ans. 1-b, 2-c, 3-a, 4-d
119) Match the following
1) Scooter --------- Automobile A. A PART OF
2).Oxygen ---------- Water B. A Type of
3).Shop staff ---------- Fitters C. NOT A TYPE OF
4). Bug ---------- Reptile D. A SUPERSET OF
Ans. 1-b, 2-a, 3-d, 4-c
120) What is the largest prime number stored in a—
-----> 6 bit pattern (ANS~2^6=64, so no is 61)
------> 7 bit pattern (ANS~2^7=128, so no is 127)
-------> 8 bit pattern (ANS~2^8=256, so no is 251)
-------->9 bit pattern (ANS~2^9=512, so no is 503)
121) What is the max 3 digit Prime no?
ANS=997
122) G(0)= -1, G(1)=1, G(N)=G(N-1) - G(N-2), G(5)= ?
Ans - 2
123) G (0) =1 G (1) = -1 IF G (N) =2* (G (N-1)) – 3(G (N-2)) Then what
is the value of
G (4)?
124) If f (0) =1 and f (n) = f (n-1)*n, find the value of f (4).
Ans: 24
125) If g (0) =g (1) =1 and g (n) = g (n-1) + g (n –2) find g (6);
126) What is the power of 2? a. 2068 b.2048 c.2668
Ans: 2048
127) 8 to the power of x is 32, what is the value of x?
128) Power of 4 Ans-4096
129) Which one will be the exact power of 3?
(i) 2768 (ii) 2678 (iii) 2187
130) Complete the series—
a )3,8,a,24,b,48,63 [ ANS~ a=15, b=35 ]
[HINT~DIFFERENCE IS 5, 7, 9, 11, 13, 15]
B )26,19,17,13,11, ,8,7 [ ANS=9]
[HINT~26,17,11,8 DECREASING LIKE 9,6,3 & 19,13,9,7 DECREASING
LIKE 6, 4, 2]
c)9,10,11,13,15, ,21,28 [ ANS=19 ]
[HINT~9, 11, 15, and 21 INCREASING LIKE 2, 4, 6 & 10,13,19,28 INCRESING
LIKE 3, 6, and 9]
D) 4, -5, 11, -14, 22, --- [ ANS= -27]
131) Number of faces, vertices and edges of a cube
ANS: 6,8,12
132) Find the value of—
a) @@+25-++@16, where @ denotes”square” & + denotes “square root”.
[ANS=621]
b) $%$6-%$%6, where $ means “tripling” & % means “change of sign”. [ANS=
-72]
c) % # % 6 + # %# 6, % means “doubling” & # mean “reciprocal”.
132) Select odd one out
1) LINUX, WINDOWS 98, SOLARIS, SMTP (ANS: SMTP)
2)MVS
3).JAVA b) LISP c) Smaltalk d)Eiffle Ans: LISP ( All other languages are
OOPS)
4)1.http 2.arp 3.snmp 4.sap Ans:sap
5)1.linux 2.windows NT 3.sql server 4.Unix Ans: Sql server
6)1.SAP 2.ARP 3.WAP 4.TCP IP
7)a. Oracle b. Linux c. Ingress d. DB2
a. SMTP b. WAP c. SAP d. ARP Ans:SAP
9)a. WAP b. HTTP c. BAAN d. ARP Ans:Baan
10)a. LINUX b. UNIX c. SOLARIS d. SQL SERVER Ans:SQL SERVER
11)a. SQL b. DB2 c. SYBASE d. HTTP Ans: HTTP
12)a. Oracle b. Linux c. Ingress d. DB2 ANS:LINUX
133) Find the singularity matrix from a given set of matrices? (Hint det
(A) ====0)
134) Which of the following are orthogonal pairs?
a. 3i+2j b. i+j c. 2i-3j d. -7i+j
Ans: a, c
135) (a) 2+3i (b) 1+i (c) 3-2i (d) 1-7i .Find which of the above is
orthogonal.
Ans: a, c
136) Sum of slopes of 2 perpendicular st. lines is given. Find the pair
of lines from the given set of options which satisfy the above
condition?
137) If Rs.1260 is divided between A, B and C in the ratio 2:3:4, what
is C's share?
Ans: Rs. 560
138)A sum of money is divided among A, B and C such that for each rupee
A gets, B gets 65paise and C gets 35paise. If C's share is Rs.560, the
sum is …
a) 2400 b) 2800 c) 3200 d) 3800
139) Complete the series.
1) 3, 8, --, 24, --, 48, 63. Ans: 15, 35
2) Complete the series. 4, -5, 11, -14, 22, --- Ans - 27
3) SERIES: 2, 7, 24, 77, ------ (238) or (240)
4)77, 49, 36, 18,? Ans: 8 (7*7=49) (4*9=36) (3*6=1 (1*8=
5) series: 5 6 7 8 10 11 14?? Ans.15 or 18
6)15 14 12 11?? 9 8 Ans.10
7) what is the 12th term of the series 2, 5, 8 ... Ans. 35
8)58, 27, 12, x, 2, 1. Find x.
9)7, 9,13,_,27,37. Ans-19
10)2, 5, __, 19, 37, 75 Ans: 9
11) Complete the sequence 9, 10,11,13,15, __, 21, 28.
140) UNITS
1) (Momentum*Velocity)/ (Acceleration * distance) find units. Ans: mass
2) (energy * time * time)/ (mass * dist) = distance
3) (momentum * velocity)/ (force * time) = velocity
4) Find the physical quantity in units from the equation:
(Force*Distance)/ (Velocity*Velocity) Ans. Ns2/m
5) Find the physical quantity represented by
MOMENTUM *VELOCITY] / [LENGTH * ACCELERATION]?
141) Find the result of the following _expression if, M denotes modulus
operation, R denotes round-off, T denotes truncation:
M (373, 5) +R (3.4) +T (7.7) +R (5.8)
ANS: 19
142) Which of the following highest Standard deviation
a) 7, - 7, 7,-7, 7,-7 b) 7, 7, 7,7,7,7 c) -7, - 7, -7,-7,-7,-7 d) -7, 7,
-7, 7,-7, 7
Ans: d
143) 232 expressed in base-5 is Ans: 1412
144) A building with height D shadow up to G. A neighbor building with
what height shadows C feet.
|----|----|----|----|----|----|----|
A B C D E F G H
Sol: B Ft. or CD/G
145) In a fraction, if 1 is added to both the numerator at the
denominator, the fraction becomes 1/2. If numerator is subtracted from
the denominator, the fraction becomes 3/4. Find the fraction.
Ans. 3/7
146) The sum of the digits of a two digit number is 8. When 18 is added
to the number, the digits are reversed. Find the number?
Ans. 35
147) What number should be added to or subtracted from each term of the
ratio 17 : 24 so that it becomes equal to 1 : 2.
Ans. 10 should be subtracted
Section-3 :( Critical Reasoning- 12 questions - 30 min)
Refer GRE BARRONS text book 12th Edition model papers.
Model paper 1: Sec - 5 , Sec- 6
Model paper 2: Sec -1 , Sec-6
Model paper 3: Sec -5 , Sec- 6
Model paper 4: Sec -5 , Sec-6
Model paper 5: Sec -3 , Sec-7
(Try to Mug up those sections .They will give definitely from those
model papers only)
------------------------------------------------------------------------------------------------------------
Technical Interview:
(Be prepare with 2 core subjects (basics) of u r Branch)
(Be prepare with basics of C and DS and some basic programs)
Basic C programs:
Ø Prime Number
Ø Sorting Techniques
Ø Searching techniques
Ø Factorial using recursion
Ø Fibonacci series using recursion
Ø Reverse the string
Ø Palindrome
Ø Armstrong no
Ø Strong no
Ø Data structures concept
Ø Linked list concept
Ø Stack, queue Algorithms
------------------------------------------------------------------------------------------------------------
Managerial Round:
Ø Ask to solve any managerial problem regarding
Time management, Leadership qualities
Ø Tell about u r self
Ø Tell anything without interruption for 5 minutes (so be preparing in
advance regarding group leader qualities and so on …………..)
HR Interview:
Ø Tell about your self(This include ur name , ur place, ur SSC school
name with % , Intermediate college name with %, u r father ,mother,
brother occupations- no need to tell their names, u r role model, ur
hobbies, strengths, Area of interest, and u r achievements)
Ø Why TCS
Ø Tell about your strengths
Ø Tell about u r weakness
Ø Tell about u r hobbies
And so on …………….
(Be confident with smiling face)
(If you fail to prepare then prepare to fail)
ALL THE BEST –I WISH YOU HAVE A BRIGHT FUTURE
By
Anusha.
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123
Eng