2. 外语
  3. In the following equation, a, b and c each represents a single digit respectively. S=abc+cab+bca, where a, b, and c are all posi

In the following equation, a, b and c each represents a single digit respectively. S=abc+cab+bca, where a, b, and c are all posi

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问题 In the following equation, a, b and c each represents a single digit respectively.
S=abc+cab+bca, where a, b, and c are all positive integers
Quantity A: S
Quantity B: 111(a+b+c)
选项 A、Quantity A is greater.
B、Quantity B is greater.
C、The two quantities are equal.
D、The relationship cannot be determined from the information given.
答案C
解析 S=abc+cab+bca
=100a+10b+c+100c+10a+b+100b+10c+a
=111(a+b+c)
两者相等，选择C。
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本试题收录于： GRE QUANTITATIVE题库GRE分类
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