s5ea5vaneOliva s5ea5vaneOliva

07-06-2016
Mathematics

contestada

A window-washing crew can wash 10 windows per hour.

How long will it take the crew to complete a building with 200 windows?

A.
20 h

B.
10 h

C.
5 h

D.
2 h

Respuesta :

07-06-2016

The answer is 20 hours.
If window washing crew can finish 10 windows per hour. Let;s solve how many hours will it take him to finish 200 windows.
=> 200 / 10 = 20 hours,

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