Civil Service Exam Reviewer · Logical Reasoning · medium

Of 91 residents surveyed in a barangay, 49 own a motorcycle, 38 own a bicycle, and 15 do both. How many do EXACTLY ONE of the two?

  1. 87
  2. 72
  3. 57
  4. 62

Answer

C. 57

Solution

Exactly one = (49 − 15) + (38 − 15) = 34 + 23 = 57.

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