n(A) = 40, n(B) = 32 and n(A cap B) = 15. Find n(A cup B).

  1. 25
  2. 72
  3. 87
  4. 57
Answer

D) 57

n(A cup B) = n(A) + n(B) - n(A cap B) = 40 + 32 - 15 = 57. SLO M-09-A-12 · Understanding

Mathematics MCQ · More Sets and Functions MCQs · Practise