nandinigaur wrote:
Dear Karishma
So in selection of pair qs; we can select using 10*8*6 approach but remember to divide it by 3! ways?
same could be applied to any selection and couple qs???
Yes, when you need to use combination (i.e. selection only), you can use the basic counting principle (i.e. the 10*8*6 approach), but you must un-arrange at the end by dividing by n!.
Check out this post: ...
