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Discussion :: IBPS BANK EXAM TEST 3

  1. A man riding a bicycle, completes one lap of a circular field along its circumference at the speed of 73.2 kmph in 2 minutes 40 seconds. What is the area of the field ?
    2. A.

    985600 sq.metre
    B.

    848500 sq.metre
    C.

    795600 sq.metre
    D.

    Cannot be determined
    E.

    None of these

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    Answer : Option A

    Explanation :

    Circumference of circular field = (79.2 * 5/18 * 160) metre
    = 3520 metre
    ∴ 2πr = 3520
    => 2 * 22/7 * r = 3520
    => r = (3520*7)/(2*22) = 560 metre
    ∴ Area of the field
    = πr2 = 22/7 * 560 * 560
    = 985600 sq.metre

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