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- TCS PAPER & INTERVIEW - 24 MAY 2008

# TCS PAPER & INTERVIEW - 24 MAY 2008

- By Chetana S
- Published 8/07/2009
- PREPARATION MATERIALS , 2008 PAPERS
- Rating:

## Chetana S

This is Chetana, owner of the World's Biggest Job Group "CHETANA-JOBS".

View all articles by Chetana S**TCS PAPER & INTERVIEW - 24 MAY 2008 (Page-1)**

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 12^{th Edition} )** **

Ø
Antonyms (Refer In GRE BARRONS 12^{th 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 http://www.ChetanaS.org

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

**
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

**Ans: at 9 pm 7.5 more or 385.8 (DB) **

Continued....