In a survey of 100 families: 50 read Jang, 40 read Dawn, 30 read Express; 15 read Jang and Dawn, 10 read Dawn and Express, 12 read Jang and Express, and 5 read all three. How many read none of them?

  1. 88
  2. 12
  3. 13
  4. 17
Answer

B) 12

At least one = 50 + 40 + 30 - 15 - 10 - 12 + 5 = 88, so none = 100 - 88 = 12. SLO M-09-A-14 · Application

Mathematics MCQ · More Sets and Functions MCQs · Practise