Given:
The gray, shaded areas represent the amount of pizzas that were eaten
So, the remaining pizzas will be as follows:
Round pizzas:
Rectangular pizzas:
The pizzeria chefs want to box up the leftover pizza in as few boxes as possible. A box can hold a whole pizza, whether it is rectangular or round
So, we need 3 boxes for the round pizzas
and 2 boxes for rectangular pizzas