Răspuns:
Explicație pas cu pas:
Prima luna 3/5
Rest 1 - 3/5 = 2/5
A doua luna 2/5 x 7/8 = 7/20
Rest 2/5 - 7/20 = 8/20 - 7/20 = 1/20
1/20 ................5 conserve
numarul total de conserve 20 x 5 = 100
Prima luna 100 x 3/5 = 60 conserve
Rest 100 - 60 = 40 conserve
A doua luna 40 x 7/8 = 35 conserve