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If A and B are two sets such that n(A) =...

If A and B are two sets such that `n(A) = 15, n(A cup B) = 40 and n (A cap B) = 5`, then find each of the following :
(i) `n (B)`
(ii) `n (A- B)`
(iii) `n (B-A)`

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To solve the problem step by step, we will use the information given about the sets A and B. ### Given: - \( n(A) = 15 \) - \( n(A \cup B) = 40 \) - \( n(A \cap B) = 5 \) ### We need to find: ...
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