同学们在学习了列方程解应用题之后知道,许多应用问题,根据已知条件,可以按照某个(或某些)量之间的等量关系,列出方程,然后加以解决.但是,有许多应用问题,某些量之间没有相等关系,而只有不等关系,那么,这种问题如何解答呢?办法是有的,我们只要按照量的不等关系,列出关于未知量的不等式或不等式组,然后用解不等式或不等 After learning the application of the equations, students learned that many applications, according to known conditions, can list the equations according to the equal relationship between some (or some) quantities and then solve them. However, there are Many application problems, there is no equal relationship between certain quantities, but only inequality, then, how to solve this kind of problem? There are ways, we only need to list the inequalities of unknowns according to the inequalities of quantity or Group of inequalities and then use inequalities or inequalities