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Mathematics, 16.10.2019 23:50 zayzay162

Abag contains 9 counters. n counters are yellow and the rest are blue. two counters are removed randomly from the bag. the probability of the first counter being yellow and the second being blue is 5/18.

form an equation involving n and show that it simplifies to n^2 - 9n + 20 = 0

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