Tara has the family over for dinner there are 20 people who come 12 like pumpkin pie 10 apple 5 both kinds of How many dont pie?

12 like pumpkin pie

10 like apple pie

5 like both

Add the number of people who like each pie:

12 + 10 = 22

Subtract the number of people who like both pies:

22 – 5 = 17

Subtract the number of people who like pie from the total number of people:

20 – 17 = 3

Therefore, 3 people don’t like pie.