There is a bag filled with 5 blue, 4 red and 3 green marbles. A marble is taken at random from the bag, the colour is noted and then it is n

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There is a bag filled with 5 blue, 4 red and 3 green marbles. A marble is taken at random from the bag, the colour is noted and then it is not replaced. Another marble is taken at random. What is the probability of getting 2 the same colour?

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Ngọc Khuê 2 months 2021-07-22T18:29:29+00:00 1 Answers 3 views 0

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    2021-07-22T18:30:33+00:00

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )