x- suma
x-x/5=A
A-A/9=B
B-B/4 = 72 *4
4B-B=288
3B=288
B=96
A-A/9=96 *9
9A-A=864
8A=864
A=108
x-x/5=108 *5
5x-x=540
4x=540
x=135 suma initiala
Merele au costat:
135/5=27 lei
Bani ramasi : 135-27=108
Cartofii au costat:
108/9=12 lei
Bani ramasi:
108-12=96
Portocalele au costat
96/4=24 lei