MCQ On Venn diagram
Q1. The shaded area of figure is best described by?.
- A ∩ B
- A U B
- A
- B
Answer: a, A ∩ B
Solution: The region is A intersection B.
Q2. The shaded area of figure is best described by?.
- A ∪ B
- 𝐴 ∩ 𝐵
- A − B
- B - A
Answer: c, A − B
Solution:
- The left circle is set A
- The right circle is set B
- The overlapping region (A ∩ B) is not shaded
- Only the part of A outside B is shaded
This exactly matches the definition of set difference
A−B = { x∣x ∈ A and x ∉ B }
Q3. The shaded area of figure is best described by?.
- A‘
- B – (A ∩ B) – (C ∩ B)
- A ∩ C ∩ B
- B’
Answer: b, B – (A ∩ B) – (C ∩ B)