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

Given,

Let Dave\'s age is d and Brian age is b.

Dave is two years younger than Brian, implying d = b-2.

b = 17. So d = 15.