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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
admin
2009-05-19
39
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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