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      Question

      20 man can make a wall in 4 days. How many men

      required to complete the same work in 5 days ?
      A 16 Correct Answer Incorrect Answer
      B 24 Correct Answer Incorrect Answer
      C 15 Correct Answer Incorrect Answer
      D 21 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      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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