Răspuns :
regula de trei simpla
28 alb.....1008lei
35 alb .....x lei
x=35x1008/28 lei
28 alb.....1008lei
35 alb .....x lei
x=35x1008/28 lei
1008:28=36 lei costa un album
36•35=1260 costa 35 de albume
36•35=1260 costa 35 de albume