Re: ISI - Difficult Maths Questions!!

Posted by Dreyfus on May 05, 2014; 7:21am
URL: http://discussion-forum.276.s1.nabble.com/ISI-Difficult-Maths-Questions-tp7588583p7588589.html

For q3 I am getting last digit as 9
And for q4...there r 40 divisors including 6000 and 1( I used prime factorisation)