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Mathematics, 19.05.2020 02:07 yuvraj2298

Maria has a bag of 20 marbles that are white, black, and brown. If there are 10 white marbles, how many marbles are black in order for P(black) to be 1/5

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Maria has a bag of 20 marbles that are white, black, and brown. If there are 10 white marbles, how m...
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