求助一道数学题

wangcai2004521 · 发表于 2012-8-10 16:54:10

At garage sale,all of the price the items sold were different.If the price of a radio sold at the garage sale sale was both the 15th highest price and the 20th lowest price among the prices of the item sold,how many item were sold at the garage sale?
A.33
B.34
C.35
D.36
E.37
答案是B.这道题的题目不理解，求高人指点！

wangcai2004521 · 发表于 2012-8-10 17:37:34

顶一下

龙泽 · 发表于 2012-8-10 17:49:44

15th highest, 20 lowest这个数算了两遍，要减去一个。
考场上不行就数一下吧

longriver2 · 发表于 2012-8-10 18:59:33

前边有14 后边有19个加上自己一共34

wangcai2004521 · 发表于 2012-8-10 21:42:41

题目我怎么翻译不通啊！还有，只有90%左右的正确率，能参加考试么？

求助一道数学题

所属分类: GMAT考试

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