单位换算题(自己归的类呵呵)求解法(最好能方便快捷的)

yibuyibu · 发表于 2010-2-27 01:13:24

If it took Carlos 二分之一 hour to cycle from his house to the library yesterday, was the distanse that he cycled greater than 6 miles?(note: 1 mile= 5,280 feet)
(1)the average speed at which Carlos cycled from his house to the library yesterday was greater than 16 feet per second
(2)the average speed at which Carlos cycled from his house to the library yesterday was less than 18 feet per second

yibuyibu · 发表于 2010-2-27 14:55:50

那位大侠帮忙解决怎么做这道题啊晕了谢谢~

Iljiajia · 发表于 2010-2-27 15:39:25

这种数据充分性的题，没有必要费时费力作出具体答案的。

知道时间，和速度即可求出距离，然后即可比较；而且无论结果如何都不影响结果；所以答案应该是D

yibuyibu · 发表于 2010-2-27 15:58:47

正确答案是E

yibuyibu · 发表于 2010-2-27 16:08:47

自己解决哈~ 假设距离是6mile 6乘以5280的积除以1800 也就是 1800分之6乘以5280的积等于17点多这样的话两个条件都不能回答距离是否大于6mile的问题所以选E

单位换算题(自己归的类呵呵)求解法(最好能方便快捷的)

所属分类: GMAT考试

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