题目信息
A positive integer is divisible by 9 if and only if the sum of its digits is divisible by 9. If n is a positive integer, for which of the following values of k is $$25 \times 10^{n} + k \times 10^{2n}$$ divisible by 9?
A:9
B:16
C:23
D:35
E:47
参考答案及共享解析

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正确答案:
E:47
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