Question

help please A sandwich shop has three kinds of bread, seven types of meat, and four types of cheese. How many different sandwiches can be made using one type of bread, one meat, and one cheese?

Answer 1

Types of combinations of

Bread, Meat , CHeese

How many combinations of B M CH can be made.

There are 3, 7 and 4 types of food , respectively

Made a tree of possibilities

Then, for every 3 , there are 7 possibilities. Multiply both

3 x 7 = 21

And for every 7 , there are 4 possibilities . Multiply then

3x 7 x 4 = 84 possible type of sandwiches