9. n(A) = 20 , n(B) = 18 and n(A intersection B) = 5, then n(A-B) is? – InterviewSolution

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1.	9. n(A) = 20 , n(B) = 18 and n(A intersection B) = 5, then n(A-B) is?
Answer» 9. n(A) = 20 , n(B) = 18 and n(A intersection B) = 5, then n(A-B) is?

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