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I have 10 distinguishable socks in my drawer: 4 white, 4 brown, and 2 blue. In how many ways can I choose a pair of socks, provided that I get two brown socks or two white socks?

 Jul 7, 2022
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I have 10 distinguishable socks in my drawer: 4 white, 4 brown, and 2 blue. In how many ways can I choose a pair of socks, provided that I get two brown socks or two white socks?

 

There are 4*3 = 12 ways to get two brown socks and

there are 4*3 = 12 ways to get two white socks

 

so that is 24 ways.

 Jul 8, 2022

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