(3x)2=23k25 k represents a single digit Quantity A: k Quantity B: 1

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问题 (3x)2=23k25
k represents a single digit
Quantity A: k
Quantity B: 1

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A

解析 (3x)2中含有因子9,数字23k25要想能够被9整除,必须各位数字之和能够被9整除,2+3+2+5+k=12+k,12+k一定是9的倍数,那么k为6,因此选择A。
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本试题收录于: GRE QUANTITATIVE题库GRE分类
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