Question

va rog urgent
12lazi cu meresi rosii cintaresc 260kg
Stiind ca o lada cu mere are 25kg
si o lada de rosii are 20kg aflati cite lazi cu mere si cite cu rosii sint

Answer 1

m+r=12     m=12-r
25m+20r=260
25(12-r)+20r=260
300-25r+20r=260
-5r=260-300
r=40:5
r=8  lazi cu rosii
m=12-8=4 lazi cu mere
25*4+20*8=100+160=260   proba