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31 October, 10:08

There are 5 red tiles and 5 blue tiles with the letter A in a bag. There are also 6 red tiles and 4 blue tiles with the letter B in the bag. What is the probability that a randomly selected tile is blue or has the letter b

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  1. 31 October, 11:51
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    19/20

    Step-by-step explanation:

    Probability of blue tile = 9/20

    probability of letter b tile = 10/20 = 1/2

    Probability of blue or letter b = Probability of blue + probability of letter b

    = 9/20 + 1/2

    = 19/20
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