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In an examination 18 candidates passed mathematics 17 candidates passed physics 11 candidates passed mathematics and physics and 1 failed both subjects

Find the number of candidates that passed mathematics only
The number of candidates that passed physics only
The total number of candidates that sat for the examination

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3 answers

  1. Use Venn diagram.
    Start with the intersection, enter 11
    math only = 18-11 = 7
    physics only = 17-11 = 6
    outside both circles: 1

    total that sat for the exam = 11+7+6+1 = 25
    your turn for the other questions

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  2. 950 candidates

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  3. Please I can't write it much please i beg you please respond i am from lagos

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