[計量] 兩題有關GMAT problem solving的問題

看板GMAT (GMAT入學考試)作者skiptomylou3 (一條寂寞又無助的道路)時間17年前 (2009/02/17 18:02)推噓1(1推 0噓 2→)

留言3則, 3人參與討論串1/3 (看更多)

　　因為這兩題是從對岸的一本書叫做"GMAT 匯編"上面看到的，　所以不知道標題要寫什麼，所以如果有需要更改標題的再麻煩告知! 1.Month Average price per Dozen April $1.26 May $1.20 June $1.08 The table above shows the average (arithmetic mean) price per dozen of the large grade A eggs sold in a certain store during three secessive months.If 2/3 as many dozen were sold in April as in May, and twice as many were sold in June as in April . What was the average price per dozen of the eggs sold over the three-month period? (1) $1.08 (2) $1.10 (3) $1.14 (4) $1.16 (5) $1.18 Ans:D 　　第一題感覺應該要設x和y，但完全沒有頭緒要把x,y設在哪? 2. If y =/= 3 and 3x/y is a prime integer greater than 2, which of the following must be true? I. x=y 　II. y=1 　III. x and y are prime integers. (A) None (B) I only (C) II only (D) III only (E) I and III Ans:A 第二題我的答案是(E)，但讓我很模糊的是甚麼叫做prime integer? 用google查prime integer得到"素數"，然後用wiki查感覺更不清楚　　麻煩大家了~謝謝! 　　　 -- http://tw.myblog.yahoo.com/skiptomylou38 http://www.myspace.com/skiptomylou38 Just live easily!!!!!!!! -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 118.167.184.214

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hitachil

02/17 19:05, , 1^F

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Bballer

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jamlco

02/17 19:54, , 3^F

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修個文，我補來欣，然後來欣要這裡拜或下禮拜才發，但我想早點開始動作所以就先開始算! 抱歉!問這麼白癡的問題　　　　　　 ※ 編輯: skiptomylou3 來自: 118.167.184.214 (02/17 20:04) ※ 編輯: skiptomylou3 來自: 118.167.184.214 (02/17 20:05)