Reading a Venn Diagram

Difficulty: Easy · Topics: Discrete Mathematics, Sets, Venn Diagrams

In a Venn diagram the set A holds the elements -1, -9 and 4, the set B holds the elements 4, 1 and 9, and 4 is the only element drawn in the overlap of the two circles.

Which of the following statements are true?

I. A and B are equal sets.

II. B=\x^2 mid 0<x<4,\ x∈mathbbN\

III. A and B have four elements in common.