Out of 39 patients, 17 have fever, 27 have a cough and 9 have both. How many patients are in at least one of the two groups?

  1. 4
  2. 35
  3. 8
  4. 26
Answer

B) 35

At least one = 17 + 27 - 9 = 35; first group only = 8; second group only = 18; exactly one = 26; neither = 39 - 35 = 4. So the answer is 35. SLO M-09-A-14 · Application

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