A job had an observed time of 10 minutes and a performance rating of .90 based on twenty-five cycles that were timed. The allowance is 20 percent of job time. Standard time for the job in minutes is:
A) 10.0.
B) 10.8.
C) 12.5.
D) 15.0.
E) depends on the number of cycles observed.

Question

A job had an observed time of 10 minutes and a performance rating of .90 based on twenty-five cycles that were timed. The allowance is 20 percent of job time. Standard time for the job in minutes is:
A) 10.0.
B) 10.8.
C) 12.5.
D) 15.0.
E) depends on the number of cycles observed.

Quizplus · Accepted Answer

Standard time = Observed time × Performance rating ÷ (1 + Allowance)
Given, observed time = 10 mins and performance rating = 0.90
Allowance = 20% of job time = 0.20 × 10 mins = 2 mins
Substituting the values in the formula:
Standard time = 10 × 0.90 ÷ (1 + 0.20) = 10.8 mins
Therefore, the standard time for the job is 10.8 minutes, which corresponds to choice (B).

A Job Had an Observed Time of 10 Minutes and a Performance