Question

Mackenzie's ice cream shop lets customers choose 2

toppings from the list below to add to their ice cream:

Hot fudge

Sprinkles

Caramel

Strawberries

Whipped cream

Chocolate chips

How many groups of 2 different toppings can go on

an order of ice cream?

Answer 1

Answer:   15

Explanation:

There are 6 toppings and we pick two different ones. If order mattered, then there would be 6*5 = 30 permutations. However, order doesn't matter. So we divide that result by 2 and we get 30/2 = 15 combinations.