Question 472 of 480

Given n(A) = 8, n(B) = 12, and n(A ∩ B) = 3, find n(A ∪ B).

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Correct Answer: B

Explanation
n(A ∪ B) = n(A) + n(B) - n(A ∩ B) = 8 + 12 - 3 = 17.
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