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When - of a certain number is subtracted from the number and then this differenc
When - of a certain number is subtracted from the number and then this differenc
游客
2025-02-23
52
管理
问题
When - of a certain number is subtracted from the number and then this difference is added with 20, the result is the original number. What is the original number?
选项
A、9
B、22
C、18
D、60
E、13
答案
D
解析
假设这个数为x，根据题意得到：x-x/3+2=x，x=60，D为正确答案。
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