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1. A time-study specialist has set the production rate for each worker on a certain job at 22 units every 3 hours. At this rate what is the minimum number of workers that should be put on the job if at least 90 units are to be produced per hour?
- A. 12
- B. 12
- C. 12
- D. 12
Answer: Option B
Explanation:
The rate for each worker can be expressed as 22/3 units per hour.
We can let n = the number of workers needed to produce 90 units per hour, and we have:
n(22/3) = 90
or,22n = 270
∴ n = 270/22 = 12.2,
so there must be at least 13 workers.(ans)
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