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题库 / GMATLA-CR-122
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 ?
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?
Was the money that XT earned from the increase in gasoline sales enough to offset the cost of providing tree car washes during the promotion?
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?
Did XT or any or its gasoline stations have to pay other businesses to provide the car washes that customers were offered in the promotion?
Are XT's gasoline sales in August usually significantly higher than one twelfth of XT's annual gasoline sales ?
错选E，选项意思要读明白，E选项说的是八月份的销售额是不是比整年销售额1/12还要多，但他是否高于平均不是重点，而是看总体销售额是不是一直都在8月比较高，A更合理的解释了这点"total combined gasoline sales for all gasoline stations"表示整体销售额
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