List of top Mathematics Questions on permutations and combinations asked in JKCET

If $ ^{32}{{P}_{6}}=k\,{{(}^{32}}{{C}_{6}}), $ then $k$ is equal to

How many four digit numbers are there with distinct digits?

There are $12$ points in a plane. The number of straight lines joining any two of them, when $3$ of them are collinear, is

If $ ^{m+n}P{{ }_{2}}=90 $ and $ ^{m-n}P{{ }_{2}}=30, $ then $ (m,n) $ is given by (where, m and n are positive integers)

The number of ways in which $5$ boys and $5$ girls can be seated for a photograph so that no two girls sit next to each other is

The number of diagonals of a polygon of $20$ sides is