Peter and Tom shared the driving on a certain trip. If Peter and Tom both drove for the same amount of time, but Peter only drove \small \fr

Question

Peter and Tom shared the driving on a certain trip. If Peter and Tom both drove for the same amount of time, but Peter only drove \small \frac{2}{5} of the total distance, what was the ratio of Peter’s average speed to Tom’s average speed?

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Thiên Thanh 4 months 2021-09-05T04:04:16+00:00 1 Answers 5 views 0

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    2021-09-05T04:06:05+00:00

    Answer:

    2:3

    Explanation:

    Now, Peter and Tom both drove for the same amount of time, t

    If Peter only drove 2/5 of the total distance,

    Then Distance driven by Tom

    = 1-2/5=3/5

    Speed= Distance/Time

    Let x be the total distance

    Peter’s Average Speed=2x/5t

    Tom’s Average Speed=3x/5t

    Ratio of Peter’s Average Speed to Tom’s Average Speed then is:

    2x/5t : 3x/5t

    Since the denominators are the same, we have

    2x:3x

    and cancelling out the x on both sides

    The ratio of their average speed is 2:3

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