In a certain two-digit number, the tens’ digit is triple the units’ digit, this two-digit number can have how many different pos

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问题 In a certain two-digit number, the tens’ digit is triple the units’ digit, this two-digit number can have how many different possible values?

选项 A、5
B、4
C、6
D、3
E、8

答案D

解析两位数中十位是个位的3倍，那么可能有31，62，93这三个数。

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