Question

a plumber charges $35 flat fee $25 per hour. if his bill was $147.50, how many hours did the job take?

Answer 1

the job took 4.5 hours

Explanation:

plumber charges, flat fee = $35

fee per hour = $25

total bill = $147.50

bill charged for hours = 147.50 - 35 = $112.5

1 hour charges $25

hours charged for $112.5 = 112.5/25 = 4.5 hours