Count the ways

Exercise and reference answers

Questions

1. Answer

   7

   Question

   A menu offers 2 vegetarian and 5 meat entrees. How many entree choices in all?

2. Answer

   12

   Question

   2 appetizers, 3 entrees, 2 desserts. How many complete dinners?

3. Answer

   504

   Question

   9 swimmers race. In how many ways can first, second, third be filled?

4. Answer

   16

   Question

   A potato bar offers 4 toppings. How many different topping subsets?

5. Answer

   10

   Question

   5 side dishes, choose any 2. How many pairs?

Instructions

Work out each count and type it on the pad.

Explanation