Question

You go to the movies and want to select a drink to buy. You want to purchase 1 drink, but it can be of two types of drinks: Soda or beer of the three possible sizes: Small,Medium, or Large, and in 5 possible flavors: Vanilla, Chocolate, Strawberry,Cherry or Lemon.
If you order that one drink how many choices do you ultimately have? Show your work using both a Decision tree and Fundamental counting principal.

Answer 1

soda or beer gives 2 possibilities
2 x 3 sizes
2 x 3 x 5 possible flavours
= 30 combinations

sorry no idea what the "fundamental counting principle is"

Answer 2

^^ You just did the fundamental counting principle unknowingly

Answer 3

oh cool