[問題] 一題計量題目求解
看板GRE (GRE入學考試)作者gobears5566 (golden bear 5566)時間9年前 (2016/07/03 22:45)推噓0(0推 0噓 6→)留言6則, 3人參與討論串1/1
Each employee of a certain company is in either Department X or Department Y,
and there are more than twice as many employees
in Department X as in Department Y.
The average (arithmetic mean) salary is $25,000
for the employees in Department X
and $35,000 for the employees in Department Y.
Which of the following amounts could be the average salary
for all of the employees of the company?
Indicate all such amounts.
(A) $26,000
(B) $28,000
(C) $29,000
(D) $30,000
(E) $31,000
(F) $32,000
(G) $34,000
今天晚上去聽創勝文教 NTE 的免費講座，
老師講解這題時說答案是 CDEFG，課上有同學回答是 AB，但被老師說錯。
我自己算也是算 AB，不知是否有板友能解答究竟為何是 CDEFG，感謝！
--
※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 140.112.249.120
※ 文章網址: https://www.ptt.cc/bbs/GRE/M.1467557159.A.146.html
→
07/03 23:22, , 1F
07/03 23:22, 1F
→
07/03 23:38, , 2F
07/03 23:38, 2F
→
07/03 23:38, , 3F
07/03 23:38, 3F
→
07/04 09:12, , 4F
07/04 09:12, 4F
→
07/04 09:13, , 5F
07/04 09:13, 5F
→
07/04 09:15, , 6F
07/04 09:15, 6F
GRE 近期熱門文章
PTT職涯區 即時熱門文章
