Question
20 man can make a wall in 4 days. How many men
required to complete the same work in 5 days ?Solution
Given, M1 = 20, D1 = 4, M2 = ? and D2 = 5
From M1D1 = M2D2
⇒ 20 x 4 = M2 x 5
⇒ M2 = (20 x 4)/5
∴ M2 = 16
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