A job will have a learning rate of 75 percent. If the third unit requires 10 hours, the 12th unit should require about this many hours:
A) 5.6.
B) 6.5.
C) 7.4.
D) 8.3.
E) 9.2.

Question

A job will have a learning rate of 75 percent. If the third unit requires 10 hours, the 12th unit should require about this many hours:
A) 5.6.
B) 6.5.
C) 7.4.
D) 8.3.
E) 9.2.

Quizplus · Accepted Answer

The learning rate is 75%, which means that each unit takes 75% of the time of the previous unit. So, the 12th unit should take 75% of the time of the 11th unit, which should take 75% of the time of the 10th unit, and so on. The 10th unit takes 10 hours, so the 11th unit should take 7.5 hours, the 12th unit should take 5.6 hours, and so on.

A Job Will Have a Learning Rate of 75 Percent