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Discussion :: IBPS BANK EXAM TEST 7

  1. A rectangular field has its length and breadth in the ratio of 6 : 5 respectively. A man riding a bicycle, completes one lap of this field along its perimeter at the speed of 19.8 km/hr in 2 minutes. What is the area of the field ?
    2. A.

    19200 sq.mts
    B.

    27000 sq.mts
    C.

    32500 sq. mts
    D.

    Cannot be determined
    E.

    None of these

    View Answer

    Workspace

    View Answer

    Answer : Option B

    Explanation :

    Speed = 19.8 kmph

    = (19.5 * 5/18) m/sec

    = 5.5 m/sec

    Perimeter of rectangular field = Distance covered in 2 min i.e 120 seconds.

    = 120 * 5.5 = 660 meters

    2(6x +5x) = 660

    => 22x = 660 => x = 30

    Area of the field= 6x*5x = 30x2
    => 30 * 30 * 30 = 2700 sq.mts

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