Math

A car traveling from town A to town B at an average speed of 80 km/h took 54 minutes. Another car took 40 minutes to travel the same distance. What was the difference in their speed in km/h?

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  1. distance=speed*tim
    it is the same distance, so
    80km/hr*54=S*40
    S=80*(54/40)
    difference: 80(54/40 -1)=80*14/40_=28km/hr

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    bobpursley

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