Friday, 16 August 2013

Elitmus Questions With Solutions: Aptitude-7

31. If x,y,z are non negative integers and x=6. Find the number of solutions of 1/x +1/y = 1/z?

32. How many 8 digit numbers divisible by 25 can be formed with 0,1,2,3,4,5,6,7 ,if repetition of digits is not allowed?

33. How many numbers are there between 0 and 1000 which on division by 2, 4, 6, 8 leave remainders
1, 3, 5, 7 respectively?

34. How many six digit numbers are possible using 1,2,3,4,5,6 such that the number formed is divisible by the digit at its units place?

35. Amit can complete a piece of work in 2.25 days. Badri takes double the time taken by amit.chetan takes double dat of badro,and das takes double dat of chetan to complete the same task. They are split into two groups(of one or more persons)such that the differnce b/w the times taken by the two groups to complete the same work is minimum.what could be the compostion of the faster group?
a)amit and das
b)badri nd chetan
c)badri,chetan nd das
d)amit alone

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  1. In question 32,
    Its not mentined that the no. need to be of 8 digits,
    So in this case,
    2 digits no.
    3 digits no.
    4 digits no.
    5 digits no.
    6 digits no.
    7 digits no.
    8 digits no.

    need to be considered separately.

    1. Well, actually the question submitted to us by one of our visitors was in a raw form, we tried to put that into something polished..But the number to be formed is 8 digit.
      Thanks for notifying that :)

    2. U are putting ur hard efforts to collect and post, thats really nice.
      Nd its my pleasure to contribute in this blog by any means.

  2. in question 33.


    but urs answer is 21. how??

    1. Well, my bad it is 21. Thanks for letting us know about that mistake!