Question

Suppose Ruth Ann has 4 routes she can choose from to get from school to the library, and 5 routes from the library to her home. How many routes are there from Ruth Ann’s school to her home with a stop at the library?

Answer 1

20

Explanation:

Answer 2

so she has 4 choices the first time. And each of those four branches off to 5 possibilities. so the answer is 4*5=20