olw1Destinebalexion olw1Destinebalexion

25-02-2017
Mathematics

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Assume that you have 7 dimes and 5 quarters (all distinct), and you select 4 coins. In how many ways can the selection be made so that at least 3 coins are dimes?In how many ways can the selection be made so that at least 3 coins are dimes?

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kjbetleykendafro kjbetleykendafro

26-02-2017

3 dimes 1 quarters, 4 dimes 0 quarters
2 possibilitys

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