Question

3 banane si 5 mineole cintaresc 810 g . Cat catareste fiecare , daca o banana si o mineola la ntaresc 220 g

Answer 1

3 banane........5 minole.......810 g
1 banana..........1 minola.........220 g /×3

3 banane.........5 minole.......810 g
3 banane..........3 minole.......660 g

scadem cele doua relatii
2 minole...........150 g

Aflam cat cantareste o minola
150 : 2 = 75 g
Aflam cat cantareste o banana
220 - 75 = 145 g

Answer 2

3 b +5 m=810 l
1 b+1 m=220 l*3
...............................
3 b+5 m=810
3 b+3 m=660
......................
5 m-3 m=810-660
2 m=150
m=150/2=75 g
.................................
1 b+75 g=220 g
1 b=220-75=145 g