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Discussion :: Time and Distance

  1. An aeroplane covers a certain distance at a speed of 240 kmph in 5 hours. To cover the same distance in 1 hours, it must travel at a speed of:

    2. A.

    300 kmph
    B.

    360 kmph
    C.

    600 kmph
    D.

    720 kmph

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    Workspace

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    Answer : Option D

    Explanation :

    Distance = (240 x 5) = 1200 km.

     

    Speed = Distance/Time

     

    Speed = 1200/(5/3) km/hr.     [We can write 1 hours as 5/3 hours]

     

    Required speed=[1200*\(\frac { 3} {5 } \)]km/hr =720km/hr

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