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Math Help - set theory issue

  1. #1
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    set theory issue

    in a coaching centre of 70 but 4 students went on a university visit. 31 went to unilag, 35 went to lasu, and 36 went to u.i. 10 went to all the 3 universities. 12 went to unilag only, 13 went to lasu only, 15 went to u.i only. how many students visited...
    1 - unilag and lasu
    2 - at least 2 universities
    3 - exactly 2 universities
    4 - u.i or unilag but not lasu
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  2. #2
    Member Goku's Avatar
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    Re: set theory issue

    You should draw a Venn diagram first then solve the Unknowns using silmutaneous equations.
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  3. #3
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    Re: set theory issue

    Quote Originally Posted by tdot147 View Post
    in a coaching centre of 70 but 4 students went on a university visit. 31 went to unilag, 35 went to lasu, and 36 went to u.i. 10 went to all the 3 universities. 12 went to unilag only, 13 went to lasu only, 15 went to u.i only. how many students visited...
    1 - unilag and lasu
    2 - at least 2 universities
    3 - exactly 2 universities
    4 - u.i or unilag but not lasu
    Hello and welcome to MathHelpForum.
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