45 guests
Step-by-step explanation:
Amountof pizza prepared = 3 times the usual amount
Initial amount of pizza the caterer usually makes = 5
Amount of pizza prepared now = 3 (5)
Amount of pizza prepared now = 15 pizzas
Amount consumed per guest = 1/3 of a pizza
let the number guest that 15 pizzas will feed = y
Amount of pizza available = Amount consumed per guest × number of guest
Hence, the pizzas will serve 45 guests