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Discussion :: Time and Distance

  1. A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour?
    2. A.

    3.6
    B.

    7.2
    C.

    8.4
    D.

    10

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    Answer : Option B

    Explanation :

    Speed =\( [\frac {600} {5*60 } ]m/sec\)

             

              =2 m/sec

     

      Converting m/sec to km/hr

             

                =\([2*\frac { 18 } { 5 } ]\)km/hr

     

                =7.2 km/hr

     

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