Question

Andy's customers can choose from incandesecent, compact flourescent, and LED lights in the kitchen, and in incandesecent, compact fluorescent, LED, and halogen in the dining room. How many lighting combinations are possible for the kitchen and dining room?

Answer 1

three choices for the kitchen, four for the dining room. three times four for the combination of the two by the 'counting principle'

Answer 2

so 12?

Answer 3

yes

Answer 4

Okay thank you so much! :D