- A48 boys
- B42 boys
- C36 boys
- D24 boys
Step-by-Step Solution
First team = 42 boys: boy-hours per job. Twice the work: 37800; per day hours, so 84 boys. 21 men = 42 boys; add 42.
Answer: B) 42 boys
12 men and 18 boys working 7 1/2 hours a day do a job in 60 days. A man does as much as 2 boys. How many boys must join 21 men to do twice the work in 50 days working 9 hours a day?
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