【GMAT考满分数学PS题库】Jane and Bob are currently x and 13 years old, res_真题_答案

Manhattan - 数学PS - 31

题目内容

Jane and Bob are currently x and 13 years old, respectively, where x is an integer. If Jane is older than Bob, what is the minimum value of x such that the sum of Jane's and Bob's ages has a units digit that is greater than the units digit of Bob's age?

A11
B14
C17
D18
E21

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正确答案: B

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