GRE考试

【单选题】Directions for QuantitativeComparison Questions: Some of the following questions give you two quantities, one inColumn
A、and one inColumnB,Compare the two quantities and choose one of the following answer choices:

A、if the quantity inColumn
A、is greater;

B、if the quantity in column
B、is greater;
C．if the two quantities are equal;
D．if you cannot determine the relationship based on the given information

网考网参考答案：D
网考网解析：
To solve this problem, translate 3x into an equation in terms of y. To do so, substitute x=2y+3 into 3x to get 6y+9. While the quantity in Column A appears to be greater, when y≤-11, then the quantity in Column B would be greater. Because the value of y is not given, a relationship cannot be determined. document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>