Question

Practice Questions
· (i) If n (A) = 20, n (B) = 12, n (A n B) = 4, find n (AUB)​

Answer 1

Answer:

n (AUB) = 28

Step-by-step explanation:

We know that,

n (AUB)​ = n (A)+ n (B) - n (A n B)

              = 20 + 12 - 4

              = 32 - 4

              = 28

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