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Mathematics, 11.06.2020 11:57 083055
A bag contains 7 red and 10 white balls. In how many ways 4 balls are selected if there are more than 2 red balls? (Please solve it using counting rule; combination rule.)
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A bag contains 7 red and 10 white balls. In how many ways 4 balls are selected if there are more tha...
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