关于ds证实还是证伪，找到一个根据

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Did it take Pei more than 2 hours to walk a distance of 10 miles along a certain trail?  (1 mile = 1.6 kilometers, rounded to the nearest tenth.)

(1)  Pei walked this distance at an average rate of less than 6.4 kilometers per hour.

(2)  On average, it took Pei more than 9 minutes per kilometer to walk this distance.

答案d，

题目来源于prep-ds1-155我想关于证实还是证伪问题可以有答案了

这不能证明吧...

First condition: P walked this distance at an average rate of less than 6.4 kilometers per hour

6.4 KM= 4 Miles; 也就是速度低于每小时4 Miles,然而,在4Miles/hour的速度下需要2.5小时完成10Miles的路程，所以P walked more than 2 hours

Second condition: On average, it took P more than 9 minutes per kilometer to walk this distance

10 Miles = 16 KM, 每KM需要大于9分钟时间，也就是说，走完全程的16KM需要大于16*9分钟，也就是144分钟，大于两个小时的120分钟啊~