12 men can repair a road in 28 days,how long will 84 men take to do so
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Step-by-step explanation:
Case 1 = 12 men and 28days
Case 2 = 84 men and X days
Men : days = men : days
12 : 28 = 84 : X
12 x 28 = 84 x X
336 = 84 x X
X = 336 / 84
X = 4
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