题目信息
A car traveling at a certain constant speed takes 2 seconds longer to travel 1 kilometer than it would take to travel 1 kilometer at 75 kilometers per hour. At what speed, in kilometers per hour, is the car traveling?
A:71.5
B:72
C:72.5
D:73
E:73.5
参考答案及共享解析

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已选答案:
正确答案:
B:72
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