Question

Calculate the number of ways in which four paintings can be awarded first, second, third, and fourth prizes at an art competition in which a total of 30 paintings are displayed

Answer 1

657720 ways

Explanation:

This is the number pf permutations of 4 from 30:-

= 30! / (30 - 4)!

= 30! / 26!

= 30*29*28*27