本贴相关题目 OG-2015-CR-77 | GMATPrep-2007E2-CR-40OG-2015-CR-77 |
OG-13-CR-77 |
OG-12-CR-78 |
GMATPrep-2007E2-CR-40
... (KLMT)

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A recent report determined that although only 3 percent of drivers on Maryland highways equipped their vehicles with radar detectors, 33 percent of all vehicles ticketed for exceeding the speed limit were equipped with them. Clearly, drivers who equip their vehicles with radar detectors are more likely to exceed the speed limit regularly than are drivers who do not.

The conclusion drawn above depends on which of the following assumptions?

ADrivers who equip their vehicles with radar detectors are less likely to be ticketed for exceeding the speed limit than are drivers who do not.
BDrivers who are ticketed for exceeding the speed limit are more likely to exceed the speed limit regularly than are drivers who are not ticketed.
CThe number of vehicles that were ticketed for exceeding the speed limit was greater than the number of vehicles that were equipped with radar detectors.
DMany of the vehicles that were ticketed for exceeding the speed limit were ticketed more than once in the time period covered by the report.
EDrivers on Maryland highways exceeded the speed limit more often than did drivers on other state highways not covered in the report.

正确答案: B

请教OG12 CR-78

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秋叶蠖

楼主

发表于 2011-7-28 18:49:56 | 显示全部楼层

A recent report determined that although only three percent of drivers on Maryland highways equipped their vehicles with radar detectors, thirty-three percent of all vehicles ticketed for exceeding the speed limit were equipped with them. Clearly, drivers who equip their vehicles with radar detectors are more likely to exceed the speed limit regularly than are drivers who do not.

我是这样理解的，前提说：30%exceeding=radar

结论说：radar=more likely to exceed

于是，在二者非公有信息间建立逻辑链，就得到了30%exceeding=more likely to exceed，就是答案B所说的

(B) Drivers who are ticketed for exceeding the speed limit are more likely to exceed the speed limit regularly than are drivers who are not ticketed.