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[Data Sufficiency]

试题详情

题目:

In planning for a trip, Joan estimated both the distance of the trip, in miles, and her average speed, in miles per hour. She accurately divided her estimated distance by her estimated average speed to obtain an estimate for the time, in hours, that the trip would take.  Was her estimate within 0.5 hour of the actual time that the trip took?
(1) Joan's estimate for the distance was within 5 miles of the actual distance.
(2)   Joan's estimate for her average speed was within 10 miles per hour of her actual average speed.

选项:

答案:

E

提问:

条件问题完全没看懂,什么叫做估计的路程在实际路程的5米内… 没下手的思路

解答:

点赞2
阅读1942
解答: 陆旭

提问:

想确认下GMAT理解中,这里的within 5 miles是指+_ 5 miles,还是+_2.5miles?谢谢~

解答:

点赞1
阅读1558
解答: 徐小梅老师

提问:

条件问题完全没看懂,什么叫做估计的路程在实际路程的5米内… 没下手的思路

解答:

点赞2
阅读1943
解答: 陆旭老师

提问:

选了C,做的时候就觉得有陷阱,但没看出来陷阱在哪里= =

解答:

点赞0
阅读1929
解答: sysadmin老师

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