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

Correct Answer Auto Detected:

36

Answer 2

Explanation:

Number of ways = 9C2 = 9 * 8 / (1 * 2) = 36.