Arithmetic Ability
Time and Work

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Q.

4 men can repair a road in 7 hours. How many men are required to repair the road in 2 hours ?

View Answer

Correct choice: B

Explanation:

M x T / W = Constant where, M= Men (no. of men) T= Time taken W= Work load So, here we apply M1 x T1/ W1 = M2 x T2 / W2 Given that, M1 = 4 men, T1 = 7 hours ; T2 = 2 hours, we have to find M2 =? Note that here, W1 = W2 = 1 road, ie. equal work load. Clearly, substituting in the above equation we get, M2 = 14 men.
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