Question

A mechanic charges $45 per hour for labor plus $55 for a computer diagnostic test. The mechanic charges a customer $595 to repair a vehicle. How many hours did the mechanic spend on the repair?

Answer 1

The mechanic spent 12 hours on the repair.

Explanation:

1. $595-$55=£540. £540 is the total of the amount the mechanic charges for an hour, MINUS the computer diagnostic test
2. To find out how many hours the mechanic spent on the repair, we have to do $540 divided by $45, which is 12.

The mechanic spent 12 hours on the repair.