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How many subsets of the set {1,2,3,4, 5, 6, 7, 8, 9, 10} contain the number 5? (Not including empty sets)

Any answer is greatly appreciated!

 May 14, 2019
edited by Guest  May 14, 2019
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Thank you, sorry for not searching farther ;)

Guest May 14, 2019

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