Deshaw From IITG

This is deshaw from iitg.

section1)quantitative 20 min 20 bits.after 20 min you
should return paper.

section2)programming java,... 20 bits

section3)A puzzle


"""i am sending questions only""".You should prepapre
answers.
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section1)  :quantative
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5)a brick is 4kg.If you make the brick 1/4 then how
much will be its weight.
7)ans is "c"mohan 8km behind ravi"mohan speed
6km/hr,ravi speed 4km.hr when will mohan cross ravi.
8)a man on motorcycle is going inthe direction of
bulltet(gun).A man fires two bullets with time gap
"""25min""".But the man on motor cycle listens second
shot after 27 min.then find sound velocity:motorcycle
velocity.

9)k-7 is divisible by 11   and k+3n is divisible by 11
.find minium n answer is (a).that means n=5.

10)5red ball,7 white ball in one bin,3red ,12 white in
another bin.If one ball picked what is prob of it is
red.answer is 37/120

14)1-(0.1)*0.2=0.98 is the answer.

15)0.1% in one meter answer is (a)

16)ans c

19)4,12,15,5,2,---  fill that gap.

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section 2
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..
1)"soap" means/*i think ans is a*/

2)char *(*(*a[n])())(); means ans:a is an array [n] of
pointers to function returning pointer to functiuon
whose return type is char pointer

3)what will be in ""/etc"" answer is c(password files)

4)api used to hide window

5)ntfs means /*new technoly file system*/

6)a bit on unix properties answer is all of the above.

7)i=7;i++*i++ answer is 49(check)

8)p[]="d e shaw"

he made p++.so it is surely """compile time error.""""
9)char *(*(* var)())[10] means var is a pointer to a
function returning pointer to an array[10] of pointers
10)
if we pass n=10 to the following function,how many
times it will print ""done""
f(int n)
for(i=1;i<=n;i++)
f(n-i);
print("done");

i think answer is none of the above.

12)

i=0,j=1
printf("%d", max(i++,j++) )
printf("%d%d",i,j);

you got this type question in so many papers.

14)asked about properties of "structure","class"
ans is a
17)what is property of ""final class"" in java
ans is can't inherit further.


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section 3:in this section you have only one question
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...

Write any three numbers in a row.It is always possible
to find a subset of adjucent numbers that add up to a
multiple of 3(that is either one,two or three numbers
that are next to each other).

for example (1):          5,7,1    5+7=12(multiple of
3)

example 2:                4,4,15   15 is multiple of 3

example 3:                5,11,2   5+11+2=18 is
multiple of 3

can you explain why and prove it ?what happens if you
write a long list of numbers(say ""n"" numbers).Is it
always possible to find a subset of adjacent numbers
that add up to a multiple of ""n"".Can you explain why
and prove ????     

DESHAW

This is the paper given at ISI july 2001.
In Jadavpur university only BE students were allowed because
of some problems with the placement officer.
It allowed only top 10 students in all branches.
It did notinterviewed any and left with none selected at both
jadavpur university and ISI kolkata.
Some of the interview questions that were asked in ISI kolkata
were as follows.
1.questioins on Operating systems.
2.Different IPC mechanisms
3.basic unix commands like open,create,read,write,etc along with the formats
4.c++ questons
The test consisted of 3 sections as follows.
1.Analytical 20 q
2.Technical 20 q(c-13q,c++ 5q,java 2q)
3.write an Algorithm .

The questions that we colleced were from ISI.
sorry for not gathering the technical questions.
The questions were not in order and may vary with slight difference.

CHECK THE ANSWERS.
part a:
20 bits(20 min)


aptitude:
 1)reasonig question is there,
   see in alphabetical order of the names
 2)In a pack of cards what is the probability of 1 jack, 1 queen, 1 
king
ans : 64/52*51*50
 3)how many three digits numbers are divisiable by 10,15,20.
 ans :16
 4)8 persons are there,sequence of 3 persons are  never changed,in a 
circle.
number of possiabilites .
ans :6!*3! or 5!3!
 5)if x is number, the sum of digits,the (x!-x) is completely divided 
by
 number x, find that number.
 ans: any no less than 10.(Check).
 6)in cetain part of 40% solutin is replaced by 25% solution, and 
resultant 
solution is 35%, then how much solution is replaced.
ans : 1/3.
 7) i collected 8 spiders and bettles, he is a habbit removing of legs,
    he put the legs in torcher box, their count is 54, find howmany 
spiders
and bettles are there.
ans :
 8)one question was there on equation
   one kg of rice and two kg of wheat cost 320.
   six kg of wheat and 2 kg of pulses  cost is 620
    rice cost is twice the pulses.find the rice cost.
    ans :rice 170,wheat 75,pulse 85. 
 9)finding age problem
10)x2-x-6>0, x2-5x+4<0
   this type of problem, find common solution
11)
In a game problem there are two persons A and B.
A's probabiliy of winning the gme is 0.4 and B's is 0.6
There are two possible serises of winning the game.
one is choosing the best out of 3
and the other is best out of 5.What is the probability of a winning the game.
some thing like this.
ANS: c
sol may be like this
P(X=3)=3C3*(0.4)^3+3C2*(0.4)^2*(1-0.4).
12)
Two rains travelling in opposite directions with 45 KMPH and 35KMPH
of equal length
cross each other in 36 seconds.Find the length of each train.
Ans: 400 m
13)
3/5th average age of my and my son is equal to sum of our age 5 years ago.
my sons present age is 10.
what is my present age.(some thing like this)
ans: 50.(check it)
14)This year she recieved award.In the feciliation function she
said "This has been possible for my stuff,
whom i have selected and praised".
This sentence refers to
ans: her self apprisal.
15)
A went to market and bought some Kgs of rice.
If he had given 10% discount then he would have obtined 1Kg of extra rice at an
extra cost of 5%.
find the no. of kgs of rice.
ans:
16)
You were given 28 pages in a single days paper.$ pages were found missing.One is 21.
what are the other pages.
ans:7,8,22
17)
A farmw has got land.Area of land in sq.mts is 3 time the square of goats
he has He sold 1 goat and found that he needs to sell 57 sq.mts of land to maintain the
same relationship.How many goats he have now?
ans:10
part c(15 min)

part c:
algoritham:
  write an algoritham for, in chess board arranging the queens without 
  threaten themselves.
Ans:ref book of satraj sahani and Horowtiz
of Design and analysis of Algorithms.(DAA).

part b:
c bits(13)
c++ 5
java 2    (30 min)