Notam:
r-rate
g-gaini
G-gaste
r=g/5x2
G=r/2x1
g=G+52
g ___ ___ ___ ___ ___
r ___ ___
G ___
notez p = o parte
din desen se vede ca g-G=5p-1p=4p
4p=52
1p=52:4
1p=13
Cate gaste sunt?
1x13=13
Cate rate sunt?
2x13=26
Cate gaini sunt?
5x13=65
sau
13+52=65
Raspuns:
65 gaini
26 rate
13 gaste