Question

What is the minimum number of integers from 0 to 40 that must be selected in order to be sure of getting at least one that is odd

Answer 1

22

Explanation:

Number of Even from 0 to 40: 21 even numbers

It is possible to get all even numbers before getting an odd number. So,

Minimum number of integers that must be selected: 21 + 1 = 22