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Vera has 10 white socks, 10 black socks, 10 brown socks, 10 blue socks, and 10 red socks. How many socks (at a minimum) must she pull out of her sock drawer to ensure at least one matching pair?

 Apr 16, 2021
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I think it is a stupid question too.

I will assume that all the socks of each colour are identical.

 

At a minimum 2.  she might get lucky

At a maximum 6.  She might pull out one of each colour before finally pulling out a second of any.

 Apr 16, 2021

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