# Investigating trios.

Q. Three whole numbers, greater then zero can be used to form a trio.

example: (1,2,2) is a trio whose sum is 1+2+2=5

And (2,1,2) is a different trio whose sum is also 5

How many trios can you find with a sum of 5?

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...g. So the trios must consist of 1's, 2's, and 3's. If a trio has a 3, the other two must be 1's -- 3+1+1 = 5. And if a trio has a 2, the ...