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A soldering operation was work-sampled over two days (16 hours) during which an employee soldered 108 joints, actual working time was 90% of the total time and the performance rating was estimated to be 120 percent. If the contract provides allowance of 20 percent of the total time available, the standard time for the operation would be
[2004]
  • a)
    8 min.
  • b)
    8.9 min
  • c)
    10 min
  • d)
    12 min
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
A soldering operation was work-sampled over two days (16 hours) during...
Total time = 16 hours
T = 16 × 60 = 960 min

= 864 minute Normal time T normal = 120% of 864

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Most Upvoted Answer
A soldering operation was work-sampled over two days (16 hours) during...
Given data:
- Soldering operation was work-sampled over two days (16 hours)
- Employee soldered 108 joints
- Actual working time was 90% of the total time
- Performance rating was estimated to be 120 percent
- Contract provides allowance of 20 percent of the total time available

To find:
Standard time for the operation

Formula used:
Standard time = (Total time x Actual working time x Performance rating x Allowance) / Total joints

Solution:

Step 1: Calculate the total time available
Total time available = 16 hours

Step 2: Calculate the actual working time
Actual working time = Total time x Actual working time / 100
Actual working time = 16 hours x 90 / 100
Actual working time = 14.4 hours

Step 3: Calculate the total joints soldered per hour
Total joints soldered per hour = Total joints / Actual working time
Total joints soldered per hour = 108 joints / 14.4 hours
Total joints soldered per hour = 7.5 joints/hour

Step 4: Calculate the performance rating
Performance rating = 120 percent / 100
Performance rating = 1.2

Step 5: Calculate the allowance
Allowance = Total time x Allowance / 100
Allowance = 16 hours x 20 / 100
Allowance = 3.2 hours

Step 6: Calculate the standard time for the operation
Standard time = (Total time x Actual working time x Performance rating x Allowance) / Total joints
Standard time = (16 hours x 14.4 hours x 1.2 x 3.2 hours) / 108 joints
Standard time = 12 minutes

Therefore, the standard time for the soldering operation is 12 minutes (option D).
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A soldering operation was work-sampled over two days (16 hours) during which an employee soldered 108 joints, actual working time was 90% of the total time and the performance rating was estimated to be 120 percent. If the contract provides allowance of 20 percent of the total time available, the standard time for the operation would be[2004]a)8 min.b)8.9 minc)10 mind)12 minCorrect answer is option 'D'. Can you explain this answer?
Question Description
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