A school held a creative art competition in three categories. In the Venn diagram below X represents the set of children who participated in origami, Y represents the set of children who made collages, and Z represents the set of children who made posters.

Question

gabylovesyou · Answer

Based on the diagram, which of the following represents the number of children in the set 
~Z ∩ (X ∩ Y)?

 {g, h, k}

 {g, h, k, n}

 {g, h, k, n, I, j}

 {g, h, k, n, l, m, a, b}

gabylovesyou · Answer

@AccessDenied @mathsolver @mathteacher1729 @bngaure

mathteacher1729 · Answer

Do you know what the $\huge \cap $ symbol means?

gabylovesyou · Answer

its a

mathteacher1729 · Answer

It's the intersect symbol. I means "all things which are in BOTH sets."  (see attached)

mathteacher1729 · Answer

You can also see this if you go to http://www.wolframalpha.com and type not z intersect (x intersect y)

gabylovesyou · Answer

is it still A?

mathteacher1729 · Answer

Wolfram's answer is rotated, so be careful which set is labeled x, y and z.

mathteacher1729 · Answer

Venn diagrams can get pretty crazy. :-p http://en.wikipedia.org/w/index.php?title=File:Symmetrical_5-set_Venn_diagram.svg&page=1

gabylovesyou · Answer

is it A?