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30 January, 22:28

12. If Zoey has a bag of marbles containing 18 red marbles, how many blue marbles should she add to the bag so that the probability of her drawing a blue marble from the bag is / frac{1}{4}

1

4

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Answers (1)
  1. 30 January, 23:24
    0
    She should add six blue marbles
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