Question

A kayaker travels x miles per hours downstream for 2 hours. On the 4 hour return trip, the kayaker travels 4 miles per hour slower. How far did the kayaker travel in total?

Answer 1

16

Explanation:

one way=2x

one way=4(x-4)

2x=4(x-4)

2x=4x-16

2x=8

x=4

2 ways=2y=4x=16