Mathematics, 06.09.2020 20:01 phanatthegleektrash

There is a bag with only red marbles and blue marbles. The probability of randomly choosing a red marble is 3/10. There are 12 red marbles in the bag and each is equally likely to be chosen. Work out how many marbles in total there must be.

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There is a bag with only red marbles and blue marbles. The probability of randomly choosing a red ma...

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