The marketplace - Lycée Bellevue (Alès) Colegiul National Mihail Eminescu (Satu Mare - Roumanie)

Titre du sujet
The marketplace
At Alès marketplace, ”pélardons” (or French goatcheese) can only be bought in small pa- ckages of 3 and 5 pieces of cheese in each package. You can thus buy 8 pélardons, but not 7.
1. How many ”pélardons” is it possible to buy ?
2. Is there a number of ”pélardons” beyond which it is possible to buy any quantity of them ?