if X and Yare two sets such that X has 40 elements.XUY has 60 elements and X∩Y has 10 elements . how many elements does Y have?
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by using x union y formula we get that y has 30 elements
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HEY MATE ☺️
HERE IS YOUR ANSWER..
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BY USING X UNION Y FORMULA WE GET Y HAS 30 ELEMENTS.
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