Suppose that a person requires eight hours to complete a work element on the first attempt.That person has a learning rate of 90 percent for this work element.This person should require __________ hours to complete this work element on the fourth attempt.
A)7)2
B)6)48
C)5)83
D)8)8

Question

Quizplus · Accepted Answer

The learning rate is 90%, which means that the time required to complete the work element on the next attempt is 90% of the time required on the previous attempt. So, the time required on the fourth attempt is 90% of the time required on the third attempt, which is 90% of the time required on the second attempt, which is 90% of the time required on the first attempt. Therefore, the time required on the fourth attempt is 90% * 90% * 90% * 8 hours = 6.48 hours.

Suppose That a Person Requires Eight Hours to Complete a Work