SOLUTION: If n(U)=24,n(A)=11,n(B)=18,find the greatest number of n(AUB)?

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Question 940601: If n(U)=24,n(A)=11,n(B)=18,find the greatest number of n(AUB)?
Answer by stanbon(75887) About Me  (Show Source):
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If n(U)=24,n(A)=11,n(B)=18,find the greatest number of n(AUB)?
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n(AUB) = n(A)+n(B)-n(A and B)
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n(AUB) = 11 + 18 - n(A and B) <= 24
29 - n(A and B) <= 24
n(A and B) >= 5
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If n(A and B) = 5, n(AUB) = 24
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Cheers,
Stan H.
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