1) a+b+c+d=432+400+450+450=1732 lei a castigat
a=432
b=432-32=400
c=400+50=450
d=400+50=450
1732-784=948
948:4=237 lei a cheltuit lunar
2) 17xT+13xC+G=544; T=TRANDAFIR,C=CRIN,G=GAROAFE
G=544-17x8-13x9
G=544-136-117=291
291:3=97 GAROAFE
3)
T=MINGI DE TENIS
V=MINGI DE VOLEI
10xT=3xV
8xT=96
T=96:8=12
5T=12x5=60 LEI
10T=120
3V=120
V=120:3=40
5V=40x5=200 LEI