2. 外语
  3. If a is increased by 10% and b is decreased by 10%, the resulting numbers will be equal. What is the ratio of a to b?

If a is increased by 10% and b is decreased by 10%, the resulting numbers will be equal. What is the ratio of a to b?

admin2012-01-15  60
问题 If a is increased by 10% and b is decreased by 10%, the resulting numbers will be equal. What is the ratio of a to b?
选项 A、 
B、 
C、 
D、 
E、 
答案A
解析
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