作者lovekyoko (我在Tamap 天氣晴)
看板juniorhigh
標題[問題] 請問一題數學
時間Fri Oct 9 21:58:47 2009
188.
Last month 15 homes were sold in Town X. The average (arithmetic mean) sale
price of the homes was $150,000 and the median sale price was $130,000.
Which of the following statements must be true?
I.At least one of the homes was sold for more than 165,000
II.At least one of the homes was sold for more than 130,000 and less than
150,000
III. At least one of the homes was sold for less than 130,000
(A)I only
(B)II only
(C)III only
(D)I and II
(E)I and III
答案是A
請問這題該怎麼想比較快 應該不用代數字吧
謝謝
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我:小姐.幾點了.還在叫瓦斯啊
女:我要洗澡沒瓦斯啊.當然要叫瓦斯啊
我:我要打泡還找不到女人咧
女:我有再做.可以算你便宜一點喔.你要不要.我現在可以去你那邊
我:.......................... 來吧
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推 Hevak:國中就讀英文的數學題目真強orz 10/09 21:59
→ lovekyoko:不是拉 這是GMAT的考題 但觀念是國中的 10/09 22:05
推 gj942l41l4:GMAT考這個= = 10/09 22:30