PATNI @ CDAC NEWDELHI 17/12/00

This is the paper of PCS, which came today at CDAC, New Delhi

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P C S 17-12-2000

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--Time 50min

--1/3 Negative marking

--Total question 20

(Questions are not in order)

Q.1. There are 254 women. A sales man asks each about which product they

use out of three

(A, B, C,) 22 use all three, 39 use B and C....... Each uses atleast one

product.

Find the number of women that use product C

(ans 52)

Q.2. A man leaves office daily at 7pm. A driver with car comes from his

home to pick him

from office and bring home. One day he gets free at 5:30 and instead of

waiting for

driver he starts walking towards home. In the way he meets the car and

returns home on car. He reaches home 20 minutes earlier than usual.

In how much time does the man reach home usually??

(ans 1hr 20min)



Q.3 The following truth table is given. What is y equal to??

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A B C Y

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0 0 0 1

0 0 1 1

0 1 0 0

0 1 1 0

1 0 0 0

1 0 0 0

1 1 0 1

1 1 1 1

ans:- (A')(B')(AB)

Q.4 A question on venn diagram of intersection of three circles. Some

area is shaded. Find the shaded area?

ans d) a(b+c)

Q.5 Question about 22 people dancing. 7 men dance with one girl

etc...... You have to find the number of girls in it.

ans 8

Q.6 One question about A working thrice as B and if A takes 60 days less

than B to do a work.

Find the number of days it would take to complete the work if both work

together?

ans 22½days

Q.7 One quetion on 5*5 matrix. How much time does computer take to

calculate (something....)

ans:- d)more than a year

Q.8 How many 1's are there in the binary form of:

8*1024 + 3*64 + 32

ans c)4

Q.9 One question on 64 playing cards. You put the top card at the bottom

and then discard

next. Repeat the process till you are left with one card. What is the number

of this card

ans:- 1

Q.10 In a digital circuit which was to implement (A.B) + (A)XOR(B). The

designer implements

(A.B).(A)XOR(B). What is the probability of error in it??

ans 0.5

Q.11 A boy has 2 Rs. He wins or looses 1Re at a time. If he wins he gets

1Re and if he looses

the game he looses 1Re. He can loose only 5 times. He is out of the game if

he earns 5Rs.

Find the number of ways in which this is possible??

a)12 b)14 c)16 d)18

ans :- 16

Q.12 If there are 1024*1280 pixels on a screen and each pixel can have

around 16million colors.

Find the memory required for this?

a)512KB b)2MB c)4MB d)8MB

ans 4MB

Q.13,14 Two questions on comprehension( Something about Serial and parallel

imaging)

ans Q.13:- c

ans Q.14:- d

Q.15. On a particular day A and B decide that they would either speak

truth or will lie. C asks A whether he is speaking truth or lie? He answers

and B listens to what he said. C then asks B what A has said. B said "A

says that he is a liar".

What is B speaking?

a)Truth

b)Lie

c)Truth when A lies

d)Cannot be determined

ans b



Three programs on C.(All three are about arrays and are quite easy)

(not in order)

Q.16 Answer of one program is:- A intersection B

Q.17 Answer of another program is:- Run time error

Q.18 Answer of program is:- c)3, 2, 1, 10,......

PATNI 1999

PATNI NEW:-->>99-->>

1.what is the angle between two hands of a clock when time is 8-30

ans:75(approx)

2.a student is ranked 13th from right and 8th from left.how many are

there(similer)

3.a,b,c,d,e,f are arranged in a circle b is to right of c and so on(rs aggrewal)

4.chain rule(work&time)

5.puzzle test.some data is given and he asked three qustions below.
based on data we have to answer.

6.six questions on venn diagrams.

7.5 years ago sum of ages of father and son ans:40,10

8.assertion and reasoning 1.clouds 2.capital city of developed corentira
ans for both is :a

9.man walks east & from turns to right & from to left &then 45degrees to

right.in which direction he went ans:north west

10.aa-b-bb-aaa-

11.96,85,....(a series with diff 11),3,15,45,....,total 3 questions are given on series

12.a student got 70% in one subject,80% in other.to get overall 75%
how much he should get in third subject.

12.a news pwper must have a.news b.advertizements 3.editor 4.date 5.paper

13.if clouds are air, air are water and so on where birds fly?

14.press,cinema,tv ans:mass media

15.3 qustions on rs aggrewal relations i.e first few chapters of agarwal(english)

16.a man showed to a woman sitting in a pack & told to his friend.
She is the daughter of my grand mother only son
ans:daughter

group disscussion topic

1.if you become muncipal corporater what steps you take to develop your area.

2.if you become administrative officer of this university what steps you take to improve standards.

3.tell what are the seven problems in calcutta and solutions to problems?

4.abortion is legal or illegal

the following two topics are omportant they asked the same topics to many students by changing the numbers

5.in 2050 a nuclear disaster has ocurred and 50 persons are saved.which are of age above 15.of them 20 know 6 subjects and you have to choose only 3 of six subjects so that resticted resorces can used for future

subjects are 1.enggineering 2.medical 3.law 4.social sciences 5.life 6.sciences

6.in space ship 5men are going
1.docter,drug additive
2.lady lawer has done crime
3.teacher emotinally imbalanced
4.18.18 year old aeruonautical engineer
5. noble lauraut .
suddenly some thing happend

and oxygen is avaliable to only three people to use which of three you choose

interview

here they asked only personal.relating to what you have written in sychometric test
and some puzzles.one puzzle is 10 machines are there only one is defective iteams are coming
out how tdo you find out which is defective

second:
* * * how do you reverse this in two transitions

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