Ventaz Corp manufactures glasses.The manufacturing cycle efficiency is 70%.What is its waiting time if the manufacturing lead time is 120 minutes per keyboard?

Question

Quizplus · Accepted Answer

Manufacturing cycle efficiency can be calculated using the formula:
Manufacturing Cycle Efficiency = Value-adding time / Total cycle time

Value-adding time = Manufacturing lead time
Total cycle time = Manufacturing lead time + Waiting time

Given Manufacturing Cycle Efficiency = 70%
Manufacturing lead time = 120 minutes

So, 
70% = Value-adding time / (Value-adding time + Waiting time)
0.7 = 120 / (120 + Waiting time)
0.7(120 + Waiting time) = 120
84 + 0.7 Waiting time = 120
0.7 Waiting time = 36
Waiting time = 36 / 0.7 = 51.43 minutes

Rounding off to the nearest whole number, the waiting time is 36 minutes. 
Therefore, the answer is D.

Ventaz Corp Manufactures Glasses