Question

There are 5 students in a small class. To make a team, the names of 2 of them will be drawn from a hat. How many different teams of 2 students are possible?

Answer 1

10 possible teams.

Explanation:

5C2

=5!/(5-2)!2!

=5!/3!2!

=5*4*3*2*1/3*2*1*2*1

=5*4/2*1

=20/2

=10

Therefore answer is 10 possible teams....