Question 1176707: Let U = {5, 10, 15, 20, 25, 30, 35, 40}
A = {5, 10, 15, 20}
B = {25, 30, 35, 40}
C = {10, 20, 30, 40}.
Find B ⋂ C'.
A) B ⋂ C= {5, 15}
B) B ⋂ C= {25, 35}
C) B ⋂ C= {30, 40}
D) B ⋂ C= ∅
Found 2 solutions by ikleyn, MathLover1:
Answer by ikleyn(52781)   (Show Source):
You can put this solution on YOUR website! .
I see a discrepancy in your post.
The question is about B ⋂ C', while the optional answers are for B ⋂ C.
Please make all necessary corrections in the post.
Answer by MathLover1(20849)  (Show Source):
You can put this solution on YOUR website!
Let U = {5, 10, 15, 20, 25, 30, 35, 40}
A = {5, 10, 15, 20}
B = {25, 30, 35, 40}
C = {10, 20, 30, 40}.
Find B ⋂ C'.-> in C' will be all elements from set U that are not in C
C'={5,15,25,35}
B = {25, 30, 35, 40}
then B ⋂ C'={25,35}
answer: B) B ⋂ C= {25, 35}
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