Question

A pizza place offers the following toppings: pepperoni, sausage, onions. green peppers, and mushrooms.

How many different kinds of pizzas with three toppings (between none and all five) can be ordered?

Answer 1

10

Explanation:

You do 5C3, which is 5!/((5-3)!3!) -->

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

10