Question

A COMMITTEE OF 5 PEOPLE IS TO BE FORMED FROM 15 PARENTS AND 10 teachers. Find the probability that the committee will consist of at least one parent.

Answer 1

The chance that there are no parents is

10/25 * 9/24 * 8/23 * 7/22 * 6/21 = 6/1265

So, the chance that there is at least one parent is 1259/1265

Answer 2

17