How much longer is the edge of a cube with a surface area of 1,350 than the edge of a cube with a surface area of 600?

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问题 How much longer is the edge of a cube with a surface area of 1,350 than the edge of a cube with a surface area of 600?

选项 A、5
B、15
C、150
D、250
E、750

答案A

解析 设正方体的边长为a,表面S=6a2,那么a==15-10=5。
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本试题收录于: GRE QUANTITATIVE题库GRE分类
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