For each of 8 colors, I have one shirt and one tie of that color.  How many shirt-and-tie outfits can I make if I refuse to wear a shirt and a tie of the same color?
Question:
For each of 8 colors, I have one shirt and one tie of that color.  How many shirt-and-tie outfits can I make if I refuse to wear a shirt and a tie of the same color?
Answer:
Let's think step by step.

user
56
For each of 8 colors, I have one shirt and one tie of that color.  How many shirt-and-tie outfits can I make if I refuse to wear a shirt and a tie of the same color?
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