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Math Help - Venn Diagram with algebra

  1. #1
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    Venn Diagram with algebra

    A local radio station asked listeners which of the following types of music did they like: Pop, Rock or Rap.

    Of the 44 listeners who responded, 18 said they like Rap.
    9 said they like pop and rock only, 7 said they like pop and rap only.
    While 1 person likes rock and rap only.
    Three times as many said they like pop only as said they like all 3 types of music.
    Twice as many said they like pop as said they like Rock.
    3 people said they do not like any of this music.
    Let x represent those listeners who like all 3 types of music.

    i) Represent this on a venn diagram
    ii) Calculate x
    iii) Calculate the percentage of listeners who like one type of music only. Give your answer, correct to 1 decimal place.
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  2. #2
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    Hello ZettaDigit
    Quote Originally Posted by ZettaDigit View Post
    A local radio station asked listeners which of the following types of music did they like: Pop, Rock or Rap.

    Of the 44 listeners who responded, 18 said they like Rap.
    9 said they like pop and rock only, 7 said they like pop and rap only.
    While 1 person likes rock and rap only.
    Three times as many said they like pop only as said they like all 3 types of music.
    Twice as many said they like pop as said they like Rock.
    3 people said they do not like any of this music.
    Let x represent those listeners who like all 3 types of music.

    i) Represent this on a venn diagram
    ii) Calculate x
    iii) Calculate the percentage of listeners who like one type of music only. Give your answer, correct to 1 decimal place.
    Have you looked on this site for similar questions? Here is one I solved a little time ago. It doesn't have an x in it, but the method is just the same. Read it through carefully - if you still can't see how to do your problem, get back to us and we'll take it from there.

    Grandad
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