x=norma muncitor 1
y=norma muncitor 2
115%x+120%y=2000 115x+120y=200000 23x+24y=40000 y=(40000-23x)/24
95%x+110%y=1750 95x+110y=175000 19x+22y=35000
19x+22×(40000-23x)/24=35000
19x+(880000-506x)/24=35000
456x+880000-506x=840000
50x=40000
x=800 piese
y=(40000-800×23)/24=21600/24=900 piese