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2 January, 14:37

At a certain high school, 35 students play only stringed instruments, 10 students play only brass instruments, and 5 students play both. There are also 5 students who play neither stringed nor brass instruments. what is the probability that a randomly selected student plays both a string and a brass instrument?

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  1. 2 January, 14:57
    0
    0.09

    Step-by-step explanation:

    Total = 35+5+10+5 = 55

    P (string&brass) = 5/55

    = 1/11 = 0.09090909
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