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Let n(A−B)=25+x, n(B−A)=2x and n(A∩B)=2x. If n(A) = 2(n(B)) then 'X' is

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Let n(AB)=25+x, n(BA)=2x and n(AB)=2x. If n(A) = 2(n(B)) then 'X' is




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