一道gwd难题 欢迎大家讨论

GWD32-Q8

Last August the XT chain of gasoline stations had a temporary sales promotion in effect. In the promotion, any customer who made a purchase of ten or more gallons of gasoline was entitled to a free car wash. For the month of August, XT experienced a ten percent increase in gasoline sales as compared to sales in August the previous year, so evidently the promotion was successful as a means of boosting sales.B

In evaluating the argument, it would be most helpful to answer which of the following?

A.      In the areas in which XT’s gasoline stations operate, how did total combined gasoline sales for all gasoline stations last August compare with sales for the previous August?

B.       Was the money that XT earned from the increase in gasoline sales enough to offset the cost of providing free car washes during the promotion?

C.      Were there any customers who bought ten or more gallons at an XT gasoline station during the promotion who would have or more gallons at an XT gasoline in lower quantities, but more frequently,
        if the promotion had not been in effect?

D.      Did XT or any of its gasoline stations have to pay other businesses to provide the car washes that customers were offered in the promotion?

E.       Are XT’s gasoline sales in August usually significantly higher than one twelfth of XT’s annual gasoline sales?

为什么不是B或C呢？答案是A~拜托了哪位NN知道阿？

前提 促销推出后销售上升 结论 促销作为推动利润上升的手段成功了

把A做极端回答，如果同区域的其他销售商也利润上升了，那weaken这个结论，因为可能是有原因使得区域性利润上升

如果其他人没获利，那么SUPPORT这个结论，相当于排除他因

B的话无关，C的话你自己想吧

做这种类型的题目是这样的，把答案两极化一下，如果一端可以削弱，一端可以支持结论的话就是正确答案，楼主好好体会一下吧

谢谢了  yi11说出了我一直忽略的问题