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12. If 18 men can do a piece of work in 50 days, in how many days will 15 men do it?
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Answer:
in 2 days
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Answered by
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Answer:
inverse variation.
18/50 = 15/x
18 × 15 = 5x
18 × 15/5 = x
54 = x .
therefore, 15 men will take 54 days to do the work.
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