New Enroll in RBI Grade B New Batch - Starts on May 21

    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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