Last August the XT chain of gasoline stations had a temporary sales promotion in effect. In the prom...

题目信息

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.

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 bought ten 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 ?

参考答案及共享解析

共享解析来源为网络权威资源、GMAT高分考生等；如有疑问，欢迎在评论区提问与讨论

正确答案： 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?

原题大意：

去年八月，XT连锁油站有一个短期的促销活动。每位买了10+加仑汽油的顾客会获得一份免费的洗车机会。就在这个八月里面，XT油站有10%的销量上升，这证明了它促销活动的成功。

油站因为促销而对比同期增长销量，因此证明活动成功。

问evaluation？

A：在同一地区，整个地区（包括其他非XT品牌的油站）有多少的增长？

B：XT的increase收入，能够抵消免费洗车的支出吗？

C：参加了活动的顾客，如果促销活动举行的话，会不会每次买少量但多次买汽油呢？

D：免费洗车要不要花费XT的支出呢？

E：这个八月XT卖的油，是不是比1/12 一年XT卖的油多很多呢？

选项分析：

看A：如果yes，有可能全地区所有品牌的油站在那个月都有很多的增长，意味着XT的增长，不一定是来自促销。

看B：如果yes，说明赚得钱还没有花的钱多，说不定是亏了。