SOLUTION: Set K contains 30 elements, set J contains 46 elements, and 11 elements are common to both sets. Find n ( K U J).

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Question 177997This question is from textbook
: Set K contains 30 elements, set J contains 46 elements, and 11 elements are common to both sets. Find n ( K U J). This question is from textbook

Found 2 solutions by stanbon, Mathtut:
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
Set K contains 30 elements, set J contains 46 elements, and 11 elements are common to both sets. Find n ( K U J).
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n(K U J) = n(K) + n(J) - n(K and J)
n(K U J) = 30 + 46 - 11 = 65
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Cheers,
Stan H.

Answer by Mathtut(3670)   (Show Source): You can put this solution on YOUR website!
n(KUJ) = n(K) + n(J) - n(NnJ)
= 30 + 46 - 11
= 65

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