Test Academy | If for two sets A and B, n(A) = m and n(B) = n and (Number of subsets of A – Number of subsets of B) = 56, then find value of (2m + n).

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If for two sets A and B, n(A) = m and n(B) = n and (Number of subsets of A – Number of subsets of B) = 56, then find value of (2m + n).

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