AON Deductive Reasoning 3 — Questions and Answers
Question 1: Some doctors are researchers. All researchers publish papers. Which conclusion must be true?
- All doctors publish papers
- No doctors publish papers
- Some doctors publish papers (Correct answer)
- Researchers are always doctors
Correct answer: Some doctors publish papers
The doctors who are also researchers must publish papers, so some doctors publish papers.
Question 2: All flights departing after 9 PM require a gate change. Flight 202 requires a gate change. What can be deduced?
- Flight 202 departs after 9 PM
- Flight 202 may depart at any time (Correct answer)
- Flight 202 departs before 9 PM
- All flights require gate changes
Correct answer: Flight 202 may depart at any time
Gate changes can occur for reasons beyond a 9 PM departure, so the departure time cannot be determined.
Question 3: No projects over budget are approved. Project Gamma was approved. What follows?
- Project Gamma is exactly on budget
- Project Gamma is not over budget (Correct answer)
- Project Gamma has unlimited funds
- Project Gamma may be over budget
Correct answer: Project Gamma is not over budget
Since approved projects cannot be over budget, Gamma must not be over budget.
Question 4: All team leaders attended the workshop. None of the interns attended the workshop. What can be concluded?
- Some interns are team leaders
- No interns are team leaders (Correct answer)
- All team leaders are interns
- Interns may be team leaders
Correct answer: No interns are team leaders
Team leaders all attended; interns none attended — so these groups are mutually exclusive.
Question 5: If a vehicle passes inspection, it receives a sticker. Vehicle A has no sticker. What must be true?
- Vehicle A failed inspection
- Vehicle A has not been inspected
- Vehicle A did not pass inspection (Correct answer)
- Vehicle A passed a different inspection
Correct answer: Vehicle A did not pass inspection
By contrapositive, no sticker means the vehicle did not pass inspection.
Question 6: Either Alice or Bob will present the report. Alice is unavailable. What must follow?
- No one will present the report
- Bob will present the report (Correct answer)
- Alice will present remotely
- Someone else will present
Correct answer: Bob will present the report
With Alice unavailable, Bob is the only remaining option in the either/or statement.
Question 7: All premium members get priority support. Carlos gets priority support. What is the correct conclusion?
- Carlos is a premium member
- Carlos is not a premium member
- Carlos may or may not be a premium member (Correct answer)
- Priority support is only for Carlos
Correct answer: Carlos may or may not be a premium member
Priority support could be granted for other reasons, so Carlos's membership status cannot be confirmed.
AON Deductive Reasoning 3
Some doctors are researchers.
All researchers publish papers.
Which conclusion must be true?