[計量] pp2-ds-17
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 去分這52本)
因為星期五是要第二多的數量,先用11本試試看
五 四 三 二 一 日
11 10 9 8 7 6 (這樣相加只有51本,不足52本),所以只有星期五要大於11本的時候,
才有機會總合52,充分
==============================================================================
但是我不懂為什麼 四 三 二 一 日 可以確認是10 9 8 7 6 的數字
難道不會是多或更少 我知道不會超過禮拜五的11 其他星期的 就不懂了
不知道是不是我有漏掉些什麼資訊 沒注意到
再次麻煩各位了 謝謝大家~*
==============================================================================
還有另一題
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
但我算不出第二個答案
麻煩大家 謝謝(~^O^~) 拜託了
※ 編輯: popolin29 來自: 122.120.160.234 (11/26 10:30)
推
11/26 10:53, , 1F
11/26 10:53, 1F
→
11/26 10:53, , 2F
11/26 10:53, 2F
→
11/26 10:54, , 3F
11/26 10:54, 3F
推
11/26 10:56, , 4F
11/26 10:56, 4F
→
11/26 10:56, , 5F
11/26 10:56, 5F
→
11/26 11:27, , 6F
11/26 11:27, 6F
→
11/26 11:27, , 7F
11/26 11:27, 7F
→
11/26 11:31, , 8F
11/26 11:31, 8F
→
11/26 11:37, , 9F
11/26 11:37, 9F
討論串 (同標題文章)
GMAT 近期熱門文章
PTT職涯區 即時熱門文章
