Question

If n(U) = 63, n(A) = 38, n(B) = 33 and n(AUB)c = 7. By using Venn-diagram find the value of n(A∩B) and n(AUB).
you will get 20 point for the answer

Answer 1

Answer:

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Answer 2

Answer:

n(A∩B) = 15

n(AUB) = 56

Step-by-step explanation:

Given

n(A) = 38

n(B) = 33

n(AUB)' = 7. => n(AUB) = n(U) - n(AUB)' = 63 - 7 = 56

n(U) = 63

To find (i) n(A∩B) = n(A) + n(B) - n(AUB)

n(A∩B) = 38 + 33 - 56 = 15

(ii) n(AUB) = n(U) - n(AUB)' = 63 - 7 = 56