Question

There are 9 students in a class. The teacher chooses 2 students to go to the

library. The order in which they are chosen does not matter. How many ways
are there to choose the students?

Answer 1

Answer: 72

Explanation:

There are 9 students to choose from to go the library. After that person is chosen there are 8 students remaining.

First student and Second student

9 x 8 = 72