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If 42 men can do a work in 15 days how many men are required to complete it in 21 days?
Wiki User
∙ 12y ago
of men is inversely related to # of days:
42 men * 15 days = x men * 21 days
x = (15*42) / 21 = 30 men
Answer: 30 men
Wiki User
∙ 12y ago
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