Re: probab

Posted by Akshay Jain on Apr 26, 2013; 5:26pm
URL: http://discussion-forum.276.s1.nabble.com/probab-tp7580185p7580191.html

correction to above ans...
initially 5 boys can be arrenged at alternate positions in 4! ways (circle)
so ans is 4!*5P3/7!=2/7...:P