As part of a time study a particular job was analyzed.The study included 20 job cycles and the following cumulative times and performance rating factors for each element were reported:

Assuming an allowance factor of 15% the standard time for this job would be
A)4.35 minutes
B)3.67 minutes
C)2.712 minutes
D)2.358 minutes

Question

As part of a time study a particular job was analyzed.The study included 20 job cycles and the following cumulative times and performance rating factors for each element were reported:

Assuming an allowance factor of 15% the standard time for this job would be
A)4.35 minutes 
B)3.67 minutes 
C)2.712 minutes 
D)2.358 minutes

Quizplus · Accepted Answer

To find the standard time, we need to calculate the job cycle time, the normal time and the allowance.

Job cycle time (JCT) = Total time for all cycles / number of cycles = (68.8 + 69.2 + ... + 75.4) / 20 = 72.15 seconds

Normal time (NT) = JCT x Performance rating factor = 72.15 x 0.9 x 0.8 x 0.95 x 0.95 = 44.03 seconds

Allowance = NT x Allowance factor = 44.03 x 0.15 = 6.60 seconds

Standard time = NT + Allowance = 44.03 + 6.60 = 50.63 seconds

Converting seconds into minutes, we get 0.8445 minutes or 2.712 minutes (rounded to three decimal places).

Therefore, the best choice is C) 2.712 minutes.

As Part of a Time Study a Particular Job Was