Brian shoots hoops with Dave who is two years younger than B

Brian shoots hoops with Dave, who is two years younger than Brian. If Brian is 17, how old is Dave?

A. 15

B. 17

C. 19

D. 21

Solution

A. Create an equation to solve this problem.

Dave = Brian – 2.

You are told that Brian is 17. Substitute that information into the formula.

Dave = 17 – 2

Dave = 15