Peter and Tom shared the driving on a certain trip.If Peter

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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 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

两人骑行的时间相同,peter行了全程的2/5,那么tom行了全程的1-(2/5)=3/5
所以,两人的速度之比=(2/5):(3/5)=2:3
——答案：E

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