a+b+c=61
a:b=3
c:b=2 rest 7
a|-------|-------|-------|}
b|-------| 7 }61
c|-------|-------|---| }
Plan si rezolvare
1.Aflam suma partilor egale.
61-7=54
2.Aflam numarul de parti egale.
3+1+2=6
3.Aflam numarul b .
54:6=9
4.Aflam numarul a.
9 x 3=27
5.Aflam numarul c.
9 x 2+7=23
Raspuns:a=9 ; b=27 ; c=23