A small metal shop operates 10 hours each day, producing 100 parts/hour. If productivity were increased 20%, how many hours would the plant have to work to produce 1000 parts?
A) less than 2 hours
B) between 9 and 10 hours
C) between 2 and 6 hours
D) between 6 and 8 hours
E) between 8 and 9 hours

Question

Quizplus · Accepted Answer

If productivity increases by 20%, the shop will produce 120 parts/hour. To produce 1000 parts, it would take 1000/120 = 8.33 hours, which is between 8 and 9 hours.

A Small Metal Shop Operates 10 Hours Each Day, Producing