From a cafeteria 4-course lunch menu, I can choose 3 varieties of soup, 5 types of seafood, 4 kinds of side dish and 2 types of salad. How many different types of dish are possible if soup and seafood must be included with each order? *
Answers
Given : From a cafeteria 4-course lunch menu,
I can choose 3 varieties of soup,
5 types of seafood,
4 kinds of side dish and 2 types of salad.
To Find :
How many different types of dish are possible if soup and seafood must be included with each order
Solution:
soup and seafood must be included
Hence person can choose 2 course , 3 course and 4 course meal
2 course meal
soup and seafood = 3 * 5 = 15 options
3 course meal
soup and seafood + side dish = 3 * 5 * 4 = 60 options
soup and seafood + salad = 3 * 5 * 2 = 30 options
4 course meal
3 * 5 * 4 * 2 = 120
Total options = 15 + 60 + 30 + 120
= 225
There are 225 options if soup and seafood must be included with each order
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