中考数学专题复习演示课件

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1、数学2013年浙江中考第一轮复习Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.专题十一　阅读理解、图表信息问题Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.Cr

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8、题1．某校图书管理员清理阅览室的课外书籍时，将其中甲、乙、丙三类书籍的有关数据制成如图不完整的统计图，已知甲类图书有30本，则丙类图书的本数是(　　)A．90　　　　B．144　　　　C．200　　　　D．80解析：因为甲类图书有30本，占图书总数的15%，因此图书的总数量为30÷15%＝200(本)，丙类图书的百分比为100%－15%－45%＝40%，丙类图书的数量为：200×40%＝80(本)．答案：DEvaluationonly.CreatedwithAspose.Slide