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    hi ive been asked a question where i had to find the number of magazines on all 3 topics. this is 3 circles and its the very middle region. ive worked this out. the number of magazines in the universal set that are not on any of the 3 topics is 17 and the next question is..

    Now suppose it is unknown how many magazines do not contain artciles on any of the 3 topics (as opposed to the specified number of 17 above). Determine how large this could be and how small this could be given all the other information.

    i have attached the venn diagram for this question.

    please help me.
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    (Original post by sarah_vickers)
    hi ive been asked a question where i had to find the number of magazines on all 3 topics. this is 3 circles and its the very middle region. ive worked this out. the number of magazines in the universal set that are not on any of the 3 topics is 17 and the next question is..

    Now suppose it is unknown how many magazines do not contain artciles on any of the 3 topics (as opposed to the specified number of 17 above). Determine how large this could be and how small this could be given all the other information.

    i have attached the venn diagram for this question.

    please help me.
    You need to post the original question. It's impossible to help with the information you have given.
 
 
 
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