作者popolin29 (喵咪)
看板GMAT
标题[计量] pp2-ds-17
时间Wed Nov 26 10:21:17 2008
17. 1097-!-item-!-187;#058&000661
Store S sold a total of 90 copies of a certain book during the seven days of
last week, and it sold different numbers of copies on any two of the days.
If for the seven days Store S sold the greatest number of copies on Saturday
and the second greatest number of copies on Friday, did Store S sell more
than 11 copies on Friday?
(1) Last week Store S sold 8 copies of the book on Thursday.
(2) Last week Store S sold 38 copies of the book on Saturday.
Ans: B
解答是
(2) Sat.=38 ,90-38=52(剩下星期五,四,三,二,一,日 去分这52本)
因为星期五是要第二多的数量,先用11本试试看
五 四 三 二 一 日
11 10 9 8 7 6 (这样相加只有51本,不足52本),所以只有星期五要大於11本的时候,
才有机会总合52,充分
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但是我不懂为什麽 四 三 二 一 日 可以确认是10 9 8 7 6 的数字
难道不会是多或更少 我知道不会超过礼拜五的11 其他星期的 就不懂了
不知道是不是我有漏掉些什麽资讯 没注意到
再次麻烦各位了 谢谢大家~*
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还有另一题
One member of a committee of 5 men and 8 women resigned and was not replaced.
What fraction of the remaining members were men?
(1) of the remaining members were women.
(2) The member who resigned was a woman.
【答案】D
但我算不出第二个答案
麻烦大家 谢谢(~^O^~) 拜托了
※ 编辑: popolin29 来自: 122.120.160.234 (11/26 10:30)
1F：推 dxfox:下面那提选项1是不是有少 看不懂 11/26 10:53
2F：→ dxfox:然後2的话不就是说少一个女的 那剩下还是五个男的阿 11/26 10:53
3F：→ dxfox:我理解应该没错吧... 11/26 10:54
4F：推 twlarrywu:四 三 二 一 日的数字是举例的,你要6 7 8 9 10也可 11/26 10:56
5F：→ twlarrywu:总之不能超过礼拜五的11 (因为它是第二多的) 11/26 10:56
6F：→ popolin29:对选项一是少了 7/12 11/26 11:27
7F：→ popolin29:7/12 of the remaining members were women. 11/26 11:27
8F：→ popolin29:哈~对耶!!! 我懂了 ~感谢 11/26 11:31
9F：→ popolin29:第二原来是我题目没看懂~还在想说很怪~哈哈~*谢谢大家 11/26 11:37