A

Admin • 833.24K Points
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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 ?

  • (A) 17 men
  • (B) 14 men
  • (C) 13 men
  • (D) 16 men
  • Correct Answer - Option(B)
  • Views: 25
  • Filed under category Math
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Explanation by: Admin

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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