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Mathematics, 16.01.2021 01:20 RKennedy3654

A bag contains only red and blue marbles. Yasmine takes one marble at random from the bag.
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The probability that she takes a red marble is 5.
Yasmine returns the marble to the bag and adds five more red marbles to the bag.
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The probability that she takes one red marble at random is now 3.
How many marbles of each colour were originally in the bag?

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A bag contains only red and blue marbles. Yasmine takes one marble at random from the bag.
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