“合理规划问题”是数学中考的热点,总结其解法,对中考复习意义重大.一、建立方程法根据问题的特点,把要求的量用未知数表示,然后依照所给相等关系列出方程(组).例1某车间共有工人209名,每人每天可加工甲种零件3个,或乙种零件4个,或丙种零件5个.已知甲种零件4个、乙种零件7个和丙种零件2个可配成一套成品,问应怎样分配这些工人加工各种零件,才能使每天加工的成品最多? “Reasonable planning problems” is a hot spot in the mathematics test, summed up its solution, the significance of the examination for review.First, the establishment of the equation method according to the characteristics of the problem, the required amount of unknowns, and then give equal relationship according to the given equation (Group) Example 1 A workshop a total of 209 workers, each person per day processing of three kinds of parts A, or B parts 4, or A. 5 known parts A, B parts 7 And two kinds of parts can be used as a set of two finished products, ask how these workers should be assigned to the processing of various parts in order to make the most processed products per day?