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Solve the Problem  If n(B)=24,n(AB)=5, and n(AB)=42, find n(A)\text { If } n ( B ) = 24 , n ( A \cap B ) = 5 \text {, and } n ( A \cup B ) = 42 \text {, find } n ( A ) \text {. }

Question 72

Multiple Choice

Solve the problem.
-  If n(B) =24,n(AB) =5, and n(AB) =42, find n(A) \text { If } n ( B ) = 24 , n ( A \cap B ) = 5 \text {, and } n ( A \cup B ) = 42 \text {, find } n ( A ) \text {. }


A) 21
B) 18
C) 23
D) 25

Correct Answer:

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