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A box contains 3 blue, 2 white and 4 red marbles. If a marble is drawn at random from the box, what is the probability that it will not be a white mar

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A box contains 3 blue, 2 white and 4 red marbles. If a marble is drawn at random from the box, what is the probability that it will not be a white marble?
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Total number of marbles = 3+2+4 = 9 .
Number of non-white marbles = 3+4 = 7.
`:. ` P(getting a non- white marble) =`7/9`.
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