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Discussion :: Time and Distance

  1. A farmer travelled a distance of 61 km in 9 hours. He travelled partly on foot @ 4 km/hr and partly on bicycle @ 9 km/hr. The distance travelled on foot is:
    2. A.

    14 km
    B.

    15 km
    C.

    16 km
    D.

    17 km

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    Answer : Option C

    Explanation :

    Let the distance travelled on foot be x km.

     

    Then, distance travelled on bicycle = (61 -x) km.

     

    so,\( \frac { X } { 4 } \)+\( \frac { (61-X) } {9} \)=9

     

     9x + 4(61 -x) = 9 x 36

     

     5x = 80

     

     x = 16 km.

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