A job has a normal time of 12 minutes a performance rating of .80, and an allownmce factor of 20 percent of job time. The standard time for this job in minutes is:

A. 11.52
b. 12
c. 14.4
d. 15

c. 14.4

To determine the standard time for a job, we need to multiply the normal time by the performance rating and add the allowance factor.

Given:
Normal time = 12 minutes
Performance rating = 0.80
Allowance factor = 20% of job time = 0.20

Step 1: Multiply the normal time by the performance rating:
Standard time = 12 minutes * 0.80 = 9.6 minutes

Step 2: Add the allowance factor to the standard time:
Standard time = 9.6 minutes + (9.6 minutes * 0.20) = 9.6 minutes + 1.92 minutes = 11.52 minutes

Therefore, the standard time for this job is 11.52 minutes.

Answer: A. 11.52

To find the standard time for this job, we need to use the formula:

Standard Time = Normal Time x Performance Rating x (1 + Allowance Factor)

Given the values:
Normal Time = 12 minutes
Performance Rating = 0.80
Allowance Factor = 20% = 0.20

Substituting these values into the formula, we have:

Standard Time = 12 minutes x 0.80 x (1 + 0.20)

Simplifying the expression inside the brackets:

Standard Time = 12 minutes x 0.80 x 1.20

Now, we can multiply the values:

Standard Time = 11.52 minutes

Therefore, the correct answer is A. 11.52.