Re: ISI 2017 key

Posted by Asd1995 on May 19, 2017; 2:21pm
URL: http://discussion-forum.276.s1.nabble.com/ISI-2017-key-tp7604137p7604416.html

9. I got n(n-1)(n-2)....(n-k plus 1)

A simple way to do it was to see when n=k, total ways should be n factorial as you have one person per row, and they can be allotted in n! ways.

11. I marked d, unsure. You're probably correct.

Rest all are same.