Daria consumes 2.5 times the amount of pizza that Don does. If Don eats 80 pizzas, how many pizzas do they both eat altogether?
Since Daria consumes two and a half times the amount of pizza that Don does, if Don eats 80 pizzas, Daria eats 2.5*80 = <<2.5*80=200>>200 pizzas.
Together, they eat 200+80 = <<200+80=280>>280 pizzas.
#### 280