Question

A repairman charges an inspection fee plus $16 per hour. A customer with a coupon for 30% off the inspection fee pays $74 for a 2-hour repair. How many hours are worked when a customers pays $124 without a coupon?

Answer 1

I want to say that the hours worked was 4. I hope that is right.

Explanation:

30% off of $60 is 42

16*2=32 and 32+42=74

124-60=64

16*4=64

so he would have worked 4 hours for $64 and a fee of $60

64+60= 124