If n(A) = 20, n(B) = 10, and if a ≤ n(A △ B) ≤ b where a, b ∈ – InterviewSolution

1.	If n(A) = 20, n(B) = 10, and if a ≤ n(A △ B) ≤ b where a, b ∈ I +, then a + b is equal to
Answer» If n(A) = 20, n(B) = 10, and if a ≤ n(A △ B) ≤ b where a, b ∈ I +, then a + b is equal to

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