Answer:
The standard time for this task is 162 seconds ⇒ 1st answer
Step-by-step explanation:
* Lets explain how to solve the problem
- Kat observed one of her workers perform this task six times, with the
following results
- Observation : 1 2 3 4 5 6
Time (sec.) : 99 87 90 81 93 90
- Lets calculate the average of the time
∵ The average time = Total time ÷ number of times
∵ Total = 99 + 87 + 90 + 81 + 93 + 90 = 540
∵ The number of times is 6
∴ The average time = 540 ÷ 6 = 90 seconds
- The standard time = normal time + allowances
∵ Normal time = average time × rating
∵ The average time is 90 seconds
∵ The rate is 50 percent faster pace than average
∴ The rate is (1 + 50/100) = 1.5
∴ The normal time = 90 × 1.5 = 135 seconds
- The allowance of 20 percent of job time is used
∵ The allowance = average time × allowance rate
∵ The allowance is 20%
∴ The allowance = 135 × 20/100 = 135 × 0.2 = 27 seconds
* Lets calculate the standard time
∵ The standard time = normal time + allowances
∵ the normal time is 135 seconds
∵ The allowance time is 27 seconds
∴ The standard time = 135 + 27 = 162 seconds
* The standard time for this task is 162 seconds
