Civil Service Exam Reviewer · Logical Reasoning · hard
A survey of 131 farmers in a cooperative found that 64 plant rice, 68 plant corn, and 68 raise livestock. Also, 36 do the first two, 37 do the first and third, 35 do the second and third, and 25 do all three. How many do AT LEAST TWO of the three?
- 108
- 58
- 33
- 83
Answer
B. 58
Solution
Exactly two = 33; all three = 25. At least two = 33 + 25 = 58.
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