求解一道数学题

dululu · 发表于 2011-2-4 14:48:43

1.A,L,Kpooled their funds to buy a gift for a friend.A contributed ﹩2 less than 1/3of the cost of the gift and L contributed $2 more than 1/4 of the cost. if K contributed the remaining $15，what was the cost of the gift?A24 B33 C36 D43 E45p.s.我想问一下，是不是新东方蓝皮上的数学答案有不少错的呀？谢谢谢谢

dululu · 发表于 2011-2-4 15:44:27

选C吧？-- by 会员可可西里的微笑 (2011/2/4 15:32:19)

恩对的可是怎么做的呀我不懂A和L的怎么算的

dululu · 发表于 2011-2-7 11:22:25

A contributed ﹩2 less than 1/3of the cost of the gift and L contributed $2 more than 1/4 of the cost.A花的的比总数1/3少2，L花的比总数1/4多2，L多的2给A，就一个花1/3,一个花1/4，15/（1-1/3-1/4）=36-- by 会员可可西里的微笑 (2011/2/5 14:06:11)

谢啦呵呵

求解一道数学题

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