Question

A window washer cleans 42 windows in 2 hours. At this rate, how many windows did he clean in 180 minutes.

Answer 1

126 windows will be washed

Answer 2

answer: he cleaned 63 windows

step-by-step-explanation

1. If the washer cleans 42 windows in 2 hours he cleaned 21 windows in 1 hour.

2. 180 minutes equals 3 hours so you then add 42+21 and that equals 63