It took 100 hours to produce the first unit and 95 hours to produce the second unit.How many hours are required to produce the eighth unit?
A) Fewer than or equal to 60 hours
B) Greater than 60 hours but fewer than or equal to 75 hours
C) Greater than 75 hours but fewer than or equal to 90 hours
D) Greater than 90 hours

Question

Quizplus · Accepted Answer

The time required to produce each unit is decreasing by 5 hours with each additional unit (100, 95, 90, 85, 80, 75, 70, 65). Therefore, the eighth unit will require between 75 and 90 hours to produce, so the best choice is C.

It Took 100 Hours to Produce the First Unit and 95