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  • Peter and Tom shared the driving on a certain trip.If Peter and Tom both drove for the same amount of time,but Peter onl

    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 2/5 of the total distance,what was the ratio of Peter's average speed to Tom's average speed?
    (A) 1 :5
    (B) 2 :5
    (C) 1 :2
    (D) 3 :5
    (E) 2 :3
    英語(yǔ)人氣:743 ℃時(shí)間:2020-05-22 17:09:46
    優(yōu)質(zhì)解答
    兩人騎行的時(shí)間相同,peter行了全程的2/5,那么tom行了全程的1-(2/5)=3/5
    所以,兩人的速度之比=(2/5):(3/5)=2:3
    ——答案:E
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