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Infosys Aptitude - Puzzle Placement Paper 10 Sep 2006 St Michaels Academy,Chennai

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I am haridas from of engg.... i think everyone may obtain this usefull...

1)x^(1/3) - x^(1/9)=60

put x=2^18

After this.... ques. are not in order....

2) cubes issue i.e is from previous papers
the surface of the  cube is painted with red colour. By 6 straight cuts 27 cubes are formed then
a) how many cubes are there with 0 side red colour
b) how many cubes are there with one side red colour
c) how many cubes are there with two side red colour
d) how many cubes are there with three side red colour

0 faces coloured-1
1 faces coloured-6
2 faces coloured-12
3 faces coloured-8

3)edward was the youngest this puzzle was pretty easy and i feel every 1 of u can solve it. it goes something like john is

older than dave but younger than edward and goes on ( sorry folks don remember the exact Qn but  its pretty easy) there were

11 names and the  Qn was to obtain the youngest of them.

ans   edward is the youngest

4)Two couples are going fo a purchase , the man buys a suit + hat =15 ,and girl buys her hat identical as her husband's suit and

the rest for her dress... sort of like this only could not remember...

5)This ques. i din solve...i remember the ques. partially it was like... there were totallly 100men in that 70 were

married,75 having car,80 having own house ,85 having dog... from this obtain out the number of men having all the four..

somewhat like this..

6)100 knockout matches obtain out how many matches will it take to decide the winner...,

Ans: 99

7)A,B,C,D,E were five people.A and B were talking in english whn D joined and they changed to spanish whichi is the only common

language ranging from them....similarly a few knew portugese,french,italian.the was easy n is also repeated qs .(8 marks)

spanish is the most commonly spoken language.

3 of them speak portuguese.
a and c can talk in  spanish but when b arrives they begin talking in english

a and b speak in italian 

out of them 1 person speaks one language,1 person speaks two languages,1 person speaks three languages,1 person speaks 4

languages,1 person speaks five languages.
(could not remember entire ques........but it was like this only and you have to provide answers of four subsequent ques.


8)A man begins from XYZ city and drives a constant speed. After a few time he sees a milestone with 2 digits written on it.

after he drives for an hour, he sees a different milestone with the identical digits, but in reversed order. After a different hour of

journey, he sees a different milestone with original digits but with a zero ranging from them.

What was the speed of his car if milestones show kilometers?               

Ans:45 k.m/hr…..number is 16,61,106     

9) A 5 digit no whose 3rd digit is 1 greater than the sum of the 1st 2 digits and the 3rd digit is double the

fourth digit and 4th digit is double the 5th digit and 2nd digit is greater than 1st digit by 5. and if we multiply

fourth and 5th digit we get 3rd digit.
SOL)     16842

10)There was a cycle race going on. 1/5th of the those in front of a person and 5/6th of those behind him provide the total

number of  participants. How many people took part in the race?  (3 marks)   
Ans : 31


Let the total number of participants be X

So, [(x-1)/5 + 5(x-1)/6] = X


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