Help to try to figure out the right numbers to get the right answers.
Draw a Venn diagram and use the given information to fill in the number of elements in each region.
n(A)=15,
n(A ∩ B ∩ C )=6,
n(A ∩ C )=13,
n(A ∩ B′ )=8,
n(B ∩ C )=10 ,
n(A′ ∩ B′ ∩ C′ )=23,
n(B ∩ C′ )=3,
n(B ∪ C)equals=33
A =
B =
C=
U =
