Every mechanic is trained. Every trained worker is certified. No certified worker is unlicensed. Some mechanics are volunteers. Which conclusion must follow?
Correct answer: A. Some volunteers are certified.
- A. Some volunteers are certified.
- B. All volunteers are mechanics.
- C. Some certified workers are not volunteers.
- D. Every mechanic is a volunteer.
Explanation
The volunteer mechanics are trained, and every trained worker is certified. Therefore, at least some volunteers are certified.
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About Logical Deductions
Logical deductions require conclusions to be drawn from stated facts, conditions and relationships without adding outside information. The work includes handling all, some and none statements, necessary and sufficient conditions, ordering restrictions, true or false conclusions, and the difference between what must be true and what could be true.
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