Civil Service Exam Reviewer · Logical Reasoning · medium
Of 110 reviewees in a review center, 85 are taking the Professional exam, 44 attended the weekend classes, and 26 do both. How many do EXACTLY ONE of the two?
- 77
- 129
- 103
- 82
Answer
A. 77
Solution
Exactly one = (85 − 26) + (44 − 26) = 59 + 18 = 77.
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