An ice cream shop surveyed 75 customers about which flavors they liked: Vanilla, Chocolate, and Strawberry.
5 customers liked all three flavors.
12 customers liked Vanilla and Chocolate.
10 customers liked Chocolate and Strawberry.
9 customers liked Vanilla and Strawberry.
30 customers liked Vanilla.
32 customers liked Chocolate.
25 customers liked Strawberry.
Calculate how many customers liked none of these three flavors.
