Infosys  Placement Paper   Aptitude - Puzzle   -

Infosys  Placement Paper   Aptitude - Puzzle   -

  • Posted by  FreshersWorld 
    7 Jan, 2012



    1)At 6'o clock clock ticks 6 times.  The time between first and
    last ticks was 30sec.  How much time it takes at 12'o clock.
    Ans. 66 sec.                 2 marks. 

    2)Three friends divided some bullets equally.  After all of them
    shot 4 bullets the total no.of remaining bullets is equal to that of
    one has after division.  Find the original number divided.


    Ans. x          x       x

            x-4        x-4     x-4

            3x-12 = x

             x= 6

            ans is 18                  2 marks


    3)A ship went on a voyage after 180 miles a plane statrted with 10 times
    speed  that of the ship.  Find the distance when they meet from
    starting point.

    Ans.  180 + (x/10) = x
    ,x = 20
    ans is 180+20=200miles.             2 marks

    4) Fill the empty slots.
    Three FOOTBALL teams are there. Given below the list of maches.

            played  won     lost    draw    Goals for       Goals against

               A        2       2       *0      *0        *7                 1         

               B        2       *0      *1       1        2                    4

               C        2       *0      *1      *1        3                   7

                     the slots with stars are answers.   4 marks

                       BC drew with  2-2

                       A won on B by 2-0

                      a won on C by 5-1


    5) There are 3 societies a,b,c.  a lent tractors to b and c as many
    as they had.  After some time b gave as many tractors to a and c
    as many as they have.  After sometime c did the same thing.
    At the end of this transaction eachone of them had 24.
    Find the tractors each orginally had.
    Ans a had 39, b had 21, c had 12,          4 marks 

    6) There N stations on a railroad. After adding x stations 46 additional
    tickets have to be printed. Find N and X.

      Ans. let N(N-1) = t;
    (N+x)(N+x-1)       = t+46;
    trail and error method   x=2  and N=11   4 marks 

    7)Given that April 1 is tuesday. a,b,c are 3 persons told that their
    farewell party was on
    a  - may 8, thursday
    ,b  - may 10,tuesday
    , c  - june 8, friday
    Out of a,b,c one is only correct one of the regarding month,day,date.
    Other told two correct and the third person told all wrong.What is
    correct date,month,day.                 5 marks

    ans may be MAY 10 SUNDAY. check once again) 

    8)There are 4 parties.  df,gs,dl(depositloss),ew ran for a contest.
    Anup,Sujit,John made the following statements regarding results.
    Anup said either df or ew will definitely win
    sujit said he is confident that df will not win
    John said he is confident that neither ew nor dl will win
    the result has come.  only one of the above three has made a correct

    statement.  Who has made the correct statement and who has won
    the contest.                    5 marks.

      (ans DL )

    9)Five people a,b,c,d,e are related to each other.  Four of them make
    one true statement each as follows.

    i) b is my father's brother.       (ans. d said this) 

    ,ii)e is my mother-in-law. (     b          )

    iii)c is my son-in-law's brother.  (     e          )

    iv)a is my brother's wife.         (     c          )
    who said each statement.
    10 marks.


    10) All members of d are also members of a
    All   ''       e   ''                d ,
    all    ''      c    ''               both a and b ,

        not all ''     a  are members of d ,not all ''     d   ''            e ,
    Some questions on these conditions.(5questions 5 marks) 

    11)Boys are allowed to watch football at c.v.Raman auditorium subjected to conditions.

           i)the boy over age 16 can wear overcoat

           ii)no boy over age  15 can wear cap

           iii)to watch the football either he has to wear overcoat or capor both

          iv) a boy with an umberella or above 16 or both cannot wear sweater.

          v)  boys must either not watch football or wear sweater.


       What is the appearence of the boy who is watching football. Try to solve this question................

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