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Mathematics, 04.05.2020 22:44 thelukp7fihp

A box contains 20 red marbles and 30 blue marbles. A second box contains 10 white marbles and 40 black marbles. If you choose one marble fra
each box without looking, what is the probability that you get a blue marble and a black marble?


A box contains 20 red marbles and 30 blue marbles. A second box contains 10 white marbles and 40 bla

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