Final answer:
Jorge had 272 hamburger patties by Sunday evening.
Step-by-step explanation:
To find out how many hamburger patties Jorge had by Sunday evening, we need to add up the number of patties he started with and the number of patties he received on each day.
On Friday, he had 220 patties.
On Saturday, 15 patties were ordered by guests.
On Sunday, 3 tables of 4 guests each ordered patties, which is a total of 3 x 4 = 12 patties.
Additionally, on Sunday evening, a delivery truck dropped off a package of 25 patties.
To calculate the total number of patties, we can write the equation: 220 + 15 + 12 + 25 = 272.
Therefore, Jorge had 272 hamburger patties by Sunday evening.