INFOSYS PLACEMENT PAPERS ----- Placement Paper 16
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Here is theinfosys paper It may not contain full
> questions and ans
> Understand it
>
>
> 1. There are 4 married couples out ofwhich 3 a
group
> isneeded . Butther
> should not be his of her spouse .How nmany groups
are
> possible ?
> Ans 32
>
> 2.In the 4 digits 1,2,3,4 how many 4 digited
numbers are
> possible
> which are divisable by 4? Repetetions are allowed
> Ans 64
>
> 3. Twow men are goingalong a trackf rail in the
opposite
> direction.
> One goods train crossed the first person in
20 sec.
> After 10 min
> the train crossed the other person who is
commingin
> opposite direction
> in 18 sec .Afterthe train haspassed, when thetwo
> persons will meet?
>
> Approx 72min check it once.
>
> 4. Theno. of children > adults . Theno .of adults
> the
> no .of boys .
> The no.of boys > no. of girls .The no.of girls
> no.of
> familyi conditions
> 1.No family is without a child
> 2 Every girl has atleast one brotherand sister .
>
> Ans c>a>b>g>f; 9 6 5 4 3 .
>
> 6.There are4 boys Anand ,Anandya ,Madan and Murali
with
> nicmnames perich ,zomie ,drummy and madeena not in
thesame
> order
> Some com=nditons
>
> Ans Anand : Perich
> Anandya: drummy
> Madan : Zombie
> murali: Madeena
> 7.Thereare2diomans ,1 spadeand1 club and 1ace and
also 1king ,1
> jack
> and 1 aceare arranged in a straight line
>
> 1.The king is at third place
> 2.Theleft of jack is a heart and itsright is king
> 3. No two red colours arein consequtive.
> 4.The queensareseperated by two cards. Write the
orderor which
> suits
> (hearts ,clubs )and names(jacks queensetc.)
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> 8. Writeeach statementis true or false 8M
> 1.The sum of the1st three statements and the2nd
false statement
> givesthe true statement.
> 2.The no.oftrue statements >falsestatement
> 3. The sum of2nd true statement and 1st
falsestatement gives
> the first
> true statement.
> 4. Thereareatmost 3 falsestatements
> 5.There is no two consequtive true statements
> 6.If this containsonly 1-5 statements ,theanswer of
this is
> sameasthe an answer of the following question
>
> 9.Question on Venn diagram.
> All handsome are also fair skinned
> Sme musularsare fair skinned
> Some musculars are also handsome
> All lean are also muscular
> Some lean are also fair skinned.
> All rich man inot fair skinned but all rich manare
handsome
>
> Some questions follows.
> 10
> There are 3 pileseach containe 10 15 20 stones.
There are
> A,B,C,D,F,G
> and h persons .One man can catch upto four stones
from any
> pile.
> The last manwho takeswill win. If first A starts
next B. and
> so on
> who will win?
> Ans May be F
>
> Essay writing
> 1 Intrnet revolution
> 2.Media for youth
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SNAPDEAL QUESTIONS 1. A train is going at a speed of 60kmph towards Delhi and returned back at a speed of 30kmph. What is its average speed? ANS : (2*30*60)/(30+60) = 40kmph 2. How many different 4 letter words can be framed that have at least one vowel? ANS : 264 - 214 (total no of 4 digits words – no of words with no vowels) 3. Write an algorithm to find out a number from an array of numbers where only one number occurs once and rest all occurs twice. ANS : XOR all the numbers ,you will get the number with single occurrences . 4. Which among the following have the product of the distance between opposite sides of a regular polygon and it side equals one fourth of the area. A. hexagon B. octagon C. n=16 D. n=18 ANS : n=16.(area of regular polygon = apothem*perimeter/2 Apothem = distance between opposite sides/2 Area = (opp_side_dist * n * a )/4 Product of opp_side_dist and side of reg. polygon = opp_side_dist * a For n= 16 the ration becomes 1:4 5. Which of the following cannot be a relation between two variables? ANS = 4th diagram. 6.what will be the output of this program Void print (int n) { If (n>0) { printf(“hello”); print(n-1); } printf(“world”); } ANS : N times hello followed by N+1 times world. 7. Which among the following cannot be used for future prediction? ANS : 4th Diagram. 8. There are 25 horses. We have to find out the fastest 3 horses In one race maximum 5 horses can run. How many such races are required in minimum to get the result. ANS : 7 races (A. first run all horses = 5 races, eliminate 4th 5th of all races. B. Run horses who came 1st in those 5 races = 1 race , the horse coming first is the fastest Run horses a. 2nd and 3rd with the fastest horse (in first time race A) b. 2nd and 3rd coming horse in B. c. The horse who came 2nd with the horse(who came 2nd in race B) in race A You will have the fastest 3 horses.) 9. In a game of rolling dice you are given 2 dice and you have to roll them. Whatever is the outcome the player will win that many dollars. What should the game owner charge each player (optimum) so that he doesn’t have to bear any loss? ANS : $7 10. We have a function REV(“string”,m,n).This function is capable of reversing the caharacters in the string from mth location to nth location. e.g. REV(“abcd”,2,3)  the output will be acbd We need to swap a string from a position,e.g. SWAP(“abcdefg”,4)  output needs to be efgabcd. How can the REV function used do this. ANS : L = string length,N= position given in SWAP function. SWAP(“abcdefg”,4) = REV(REV(REV(“abcdefg”,N+1,L),1,N),1,L).
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