Question 1091886: Disjoint subsets A and B it a universal set U, except assume that n(U)=75, n(A)=40, and n(B)= 15. Then n(A'(complement)union B)=?
Answer by ikleyn(52903)   (Show Source):
You can put this solution on YOUR website! .
Why do not write the condition accurately and correctly, in order for the post itself and each word inside would make sense ????????
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Comment from student: Disjoint subsets A and B are in a universal set U, assume that
the number n(U)=75, the number n(A)=40, and the number n(B)= 15. Then what is the number for (A' ∪ B) ?
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My response: In this case, the subset B is contained in A' and is the part of A'.
Therefore, n(A' U B) = n(A') = n(U) - n(A) = 75 - 40 = 35.
Solved and answered.
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It was a pleasure to work with the text that you sent to me this time.
I am very glad that you followed my advise.
Happy learning !!
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