Civil Service Exam Reviewer · Logical Reasoning · hard
A survey of 126 employees of a provincial office found that 60 speak Ilocano, 67 speak Cebuano, and 69 speak Hiligaynon. Also, 40 do the first two, 25 do the first and third, 40 do the second and third, and 19 do all three. How many do NONE of the three?
- 35
- 19
- 16
- 13
Answer
C. 16
Solution
At least one = 60 + 67 + 69 − 40 − 25 − 40 + 19 = 110. None = 126 − 110 = 16.
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