2. 外语
  3. 36 If x is an integer and y=4x+3, which of the following cannot be a divisor of y?

36 If x is an integer and y=4x+3, which of the following cannot be a divisor of y?

admin2011-02-20  59
问题 36 If x is an integer and y=4x+3, which of the following cannot be a divisor of y?
选项 A、5
B、6
C、7
D、9
E、23
答案B
解析 The most direct way to answer this question is to realize that for any integer x, 4x+3 cannot be an even number, so it therefore cannot be divisible by even numbers. Since 6 is the only even number among the answers, it has to be the answer. The other way to approach this is to plug a series of integers, starting with 1, into the equation and eliminate the choices until only 6 is left.
转载请注明原文地址:https://jikaoti.com/ti/pnzYFFFM
本试题收录于： GMAT QUANTITATIVE题库GMAT分类
0

GMAT QUANTITATIVE

GMAT

相关试题推荐
随机试题
最新回复(0)