Question 1177678
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It could be a nice, &nbsp;beautiful <U>first class problem</U>, &nbsp;BUT, &nbsp;UNFORTUNATELY,


it describes, &nbsp;BY &nbsp;MISTAKE, &nbsp;a situation which &nbsp;NEVER &nbsp;MAY &nbsp;HAPPEN &nbsp;in real life,


because the intersection of the three sets &nbsp;XYZ &nbsp;(24%) &nbsp;is, &nbsp;according to the condition,


GREATER &nbsp;than the intersection of two subsets &nbsp;XY &nbsp;(20%) &nbsp;and &nbsp;XZ &nbsp;(15%).



So, &nbsp;in this form, &nbsp;as presented in the post, &nbsp;the problem is good for re-cycling, &nbsp;only.



Unfortunately, &nbsp;the person who composed this problem, &nbsp;has lack of knowledge in elementary &nbsp;Math.



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When you complete reading my post, &nbsp;do not forget to submit your &nbsp;"THANKS" &nbsp;to me for my teaching.



At least, &nbsp;do not post your anathema to me for opening your eyes,
as some visitors of this forum do.