Question

The bill for the repair of your refrigerator was $146. The cost for parts was $74. The cost for the service call and the first half hour of service was $50. The additional cost for labor was $22 per half hour. How many hours did the repair work take?

Answer 1

Answer:

146 - 74= 72

72 - 50 = 22

from the $50 is 30 mins of work

add on another 30 mins for the $22

it took 1 hr