Question

2. Henry can clean the pool three times as fast as John. Together they can do the job in 2 hours. About how long would it take Henry to clean the pool alone?

Answer 1

Henry = t/3
John = t
Together they can do the job in 2 hours
t/3 + t = 2 hours
4t/3 = 2 hours
t =3/2 hours

Henry = t/3 = (3/2)/3 = 0.5 hours

Answer 2

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