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  1. 10 man can make a wall in 8 days. How many men required to complete the same work in half days ?
    1. 80
    2. 100
    3. 120
    4. 160
Correct Option: D

Given, M1 = 10 D1 = 8, M2 = ? and D2 = 1/2
From M1D1 = M2D2
⇒ 10 x 8 = M2 x 1/2
⇒ M2 = 10 x 8 x 2
∴ M2 = 160


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