设甲车间原计划加工X个零件,那么乙车间原计划加工(680-X)个零件
(1+1/5)X+(1+3/20)(680-X)=798
1.2X+782-1.15X=798
0.05X=798-782
X=16÷0.05
X=320
所以,乙车间原计划加工零件:680-320=360个
设甲车间原计划加工X个零件,那么乙车间原计划加工(680-X)个零件
(1+1/5)X+(1+3/20)(680-X)=798
1.2X+782-1.15X=798
0.05X=798-782
X=16÷0.05
X=320
所以,乙车间原计划加工零件:680-320=360个