GMAT逻辑题练习及答案(453)

2017-11-27 09:52

来源：新东方在线

作者：

　　The price of a full-fare coach ticketfrom Toronto to Dallas on Breezeway Airlines is the same today as it was a yearago, if inflation is taken into account by calculating prices in constant dollars.However, today 90 percent of the Toronto-to-Dallas coach tickets that Breezewaysells are discount tickets and only 10 percent are full-fare tickets, whereas ayear ago half were discount tickets and half were full-fare tickets. Therefore,on average, people pay less today in constant dollars for a BreezewayToronto-to-Dallas coach ticket than they did a year ago.

　　Which one of the following, if assumed,would allow the conclusion above to be properly drawn?

　　(A) A Toronto-to-Dallas full-fare coachticket on Breezeway Airlines provides ticket-holders with a lower level ofservice today than such a ticket provided a year ago.

　　(B) A Toronto-to-Dallas discount coachticket on Breezeway Airlines costs about the same in constant dollars as theydid a year ago.

　　(C) All full-fare coach tickets onBreezeway Airlines cost the same in constant dollars as they did a year ago.

　　(D) The average number of coachpassengers per flight that Breezeway Airlines carries from Toronto to Dallastoday is higher than the average number per flight a year ago.

　　(E) The criteria that Breezeway Airlinesuses for permitting passengers to buy discount coach tickets on the Toronto-to-Dallasroute are different today than they were a year ago.

　　答案选B

　　本题所讲的，无非就是，peoplepay less today in constant dollars，而得出这个结论的证据是，以前10%有打折，现在一半有打折，那么，这个前提就是，他们的价格是一样的，不然，如果涨价，就不可能付的少了

　　A，service，无关

　　C，full-fare coach tickets cost the same 不等于打折后的也一样

　　D，无关

　　E，无关

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