目录第一篇计算问题··································································1第一章和差倍比.......................................................................................1第二章整除特性.......................................................................................4第二篇行程问题··································································7第三篇排列组合问题··························································10第四篇古典概率问题··························································13第五篇极值问题································································15附录··················································································181内部资料免费交流第一篇计算问题第一章和差倍比一、知识讲解（一）问题描述（二）解题方法二、能力训练例1.小张买了一批文学读物和工具书准备打包捐赠给贫困学生。他发现如果每个包里装5本文学读物和3本工具书，则最后剩下8本文学读物；如果每个包里装6本文学读物和2本工具书，则最后剩下8本工具书。问小张买的文学读物和工具书共有多少本？A.72B.80C.88D.96例2.植树节，某科室义务种100棵树，男职工每人种11棵，女职工每人种5棵，那么这个科室男、女职工的人数分别是：A.3，12B.7，4C.5，9D.6，72内部资料免费交流三、效果检验1.甲、乙、丙、丁四个人负责制作若干数量的工艺品，其中甲做了全部工艺品的101，丙做的数量是乙的2倍，丁做的数量是甲和乙做的总量的21，乙比甲多做100个。则这些工艺品的总量是（）个。A.700B.600C.500D.8002.张某早晨批发了1500元的苹果和葡萄，苹果每斤3.25元，葡萄每斤2.5元。到下午全部售完后发现，苹果平均每斤盈利10%，而葡萄损耗严重，平均每斤亏损15%。两种水果共获利100元。问张某早晨批发了多少斤苹果？A.200B.400C.300D.803.王大妈在市场...
