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State X has a sales tax rate of k percent on all purchases and State Y has a sales tax rate of n percent on all purchases. What is the value of k-n?
(1)The sales tax on a $15 purchase is 30 cents more in State X than in State Y.
(2)The sales tax rate in State X is 1.4 times the sales tax rate in State Y.
分析A选项
分析B选项
分析C选项
分析D选项
分析E选项
条件一:15K=(1+0.3)*15N,所以15(K-N)=1.3,题目题要求的就是K-N,所以不需要知道K和N的具体值,条件一充分
Galaxy椰椰
1)15K=0.3+15N,所以15(K-N)=0.3,题目题要求的就是K-N,所以不需要知道K和N的具体值【充分】 2)没有具体数据【不充分】 选A
Hykonki
求大佬解析!
639982uc回复 1550055qgrg
条件一:15K=(1+0.3)*15N,所以15(K-N)=1.3,题目题要求的就是K-N,所以不需要知道K和N的具体值,条件一充分
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2021-09-19 14:18:27
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数据充分DS
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