2. 外语
  3. The price of an article of clothing was reduced from $25 to $20. The reduced price of the article was then increased by x percen

The price of an article of clothing was reduced from $25 to $20. The reduced price of the article was then increased by x percen

admin2009-05-19  89
问题 The price of an article of clothing was reduced from $25 to $20. The reduced price of the article was then increased by x percent to return it to $ 25.        

Column A                 Column B
x                        20
选项 A、if the quantity in Column A is greater
B、if the quantity in Column B is greater
C、if the two quantity are equal
D、if the relationship cannot be determined from the information given
答案A
解析 一件衣服的价格从$25降到$20，减价后衣服的价钱又涨了x％，该衣服的价格升至原价$25。
解：本题的正确答案为(A)。由题意可列出下面的方程：$20(1+x％)=$25 => x=25
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本试题收录于： GRE QUANTITATIVE题库GRE分类
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