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WAEC Mathematics 1993 Question 38

Question 38

Sets

What is A∩B in the diagram below?

Diagram for this question
  1. A.{2, 3}
  2. B.{2, 3, 4}
  3. C.{1, 2, 3}
  4. D.{2, 3, 8}
  5. E.{6, 4, 7}
Show the answer and explanation

Answer: B ({2, 3, 4})

Explanation

A∩B is everything inside both circles A and B: 2 and 3, plus 4 in the middle region shared by all three circles.