If 5<x<10 and 0<y<3/2, which of the following gives all possible values of xy?

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问题 If 5<x<10 and 0<y<3/2, which of the following gives all possible values of xy?

选项 A、0<xy<15/2
B、0<xy<15
C、3/2<xy<10
D、5<xy<10
E、15/2<xy<15

答案B

解析 根据上面的不等式性质4,0<xy<15,所以选择B。
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