prep ds2-147

lxw19 · 发表于 2010-3-29 14:59:28

147.15034-!-item-!-187;#058&010480

If a certain company purchased computers at $2,000 each and printers at $300 each, how many computers did it purchase?

(1)More than three printers were purchased.

(2)The total amount for the purchase of the computers and the printers was $15,000.

【答案】E

【思路】

(1)只表示printer 多買3台以上,insufficient

(2) 2000c+300p=15000,無法得知computer數量,insufficient

(1)+(2) 有可能是computer 3台印表機 30台or computer 6台 printer 10台,insufficient

这道题个人认为应该选C，1）说的是more than three，就应该不包括3吧~~征求nn看法

traviszhu · 发表于 2010-3-29 15:14:43

(1)More than three printers were purchased.说的是printer至少3台啊，又不是computer，(1)+(2) 有可能是computer 3台印表機 30台or computer 6台 printer 10台那就有2种情况了啊，当然是E啊

sissizhx · 发表于 2010-3-29 15:21:09

mm, 如果光买50 printer（300*50）也是可以的吧

lxw19 · 发表于 2010-3-29 15:36:26

呀呀，是啊~~呵呵，脑袋犯糊涂了

prep ds2-147

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