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)5.5
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 complete a unit is reduced by 30%. So, the time taken to complete the third unit should be 70% of the time taken to complete the second unit. The time taken to complete the second unit is 70% of the time taken to complete the first unit, which is 10 hours. So, the time taken to complete the third unit should be 70% of 10 hours, which is 7 hours.

A Job Has a 70% Learning Curve