Question

    Find the time taken by a pipe, which releases 400

    m3 of water in a minute to fill an empty cylindrical tank of radius 20 m and height 14 m. [Take π = 3]
    A 40 minutes Correct Answer Incorrect Answer
    B 43 minutes Correct Answer Incorrect Answer
    C 45 minutes Correct Answer Incorrect Answer
    D 42 minutes Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Volume of tank = 3 × 202 × 14 = 16800 m3 Required time taken = 16800/400 = 42 minutes

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