Mathematics

In an examination 60 candidates passed intergrated science or mathematics if 15 passed both subjects and 9 more passed mathematics than science 1:find the number of candidates who passed in each subjects 2: the probability that a student passed exactly one subject

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  1. If x passed science, then
    x + x+9 - 15 = 60

    60-15 = 45 passed only one subject

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    oobleck
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