A job has a 70% learning curve.If the first unit took 10 hours to complete,the third unit should take roughly how many hours?
A)7
B)5.7
C)5
D)3.5
E)4.9

Question

Quizplus · Accepted Answer

The learning curve is 70%, which means that each time the number of units doubles, the time taken to produce a unit decreases by 30%. So, the time taken to produce the third unit should be 70% of the time taken to produce the second unit, which in turn should be 70% of the time taken to produce the first unit. Therefore, the time taken to produce the third unit should be 70% of 70% of 10 hours, which is 4.9 hours.

A Job Has a 70% Learning Curve