Question

A plumber has been called in to replace a broken kitchen sink. the material needed costs $341.25 and the total expected cost of the job is $424.09. if the cost is $20.71 per hour the plumber works, how many hours does the plumber spend fixing the kitchen sink?

Answer 1

4 hours

Explanation:

$424.09 -- total expected cost

- 341.25 -- material needed cost

_______

$ 82.84

÷ 20.71 -- cost per hour

_______

4 hours