AON Deductive Reasoning 5 — Questions and Answers
Question 1: All board members voted on the resolution. Kevin did not vote on the resolution. What follows?
- Kevin abstained
- Kevin is not a board member (Correct answer)
- Kevin voted against
- Kevin missed the meeting
Correct answer: Kevin is not a board member
If all board members voted and Kevin did not vote, Kevin cannot be a board member.
Question 2: Every student who scores above 90 earns an A. Lisa earned an A. What can be concluded?
- Lisa scored above 90
- Lisa may or may not have scored above 90 (Correct answer)
- Lisa scored exactly 90
- Lisa is the top student
Correct answer: Lisa may or may not have scored above 90
An A may be awarded for reasons beyond a score above 90, so Lisa's score cannot be confirmed.
Question 3: No marketing emails are sent without approval. This email was sent. What must be true?
- This email was not a marketing email
- This email had approval (Correct answer)
- This email bypassed the system
- This email was sent by mistake
Correct answer: This email had approval
Since no unapproved emails are sent and this email was sent, it must have had approval.
Question 4: All toxic chemicals require a warning label. Substance Z has no warning label. What can be deduced?
- Substance Z is toxic
- Substance Z is not toxic (Correct answer)
- Substance Z is missing its label
- Substance Z may be toxic
Correct answer: Substance Z is not toxic
By contrapositive, no warning label means it is not a toxic chemical.
Question 5: Some engineers are also designers. All designers use CAD software. Which must be true?
- All engineers use CAD software
- No engineers use CAD software
- Some engineers use CAD software (Correct answer)
- Designers are always engineers
Correct answer: Some engineers use CAD software
Engineers who are also designers must use CAD, so some engineers use CAD software.
Question 6: If the alarm sounds, evacuate immediately. The alarm did NOT sound. What can be concluded?
- You do not need to evacuate
- You should still evacuate
- The alarm is broken
- Evacuation may or may not be needed (Correct answer)
Correct answer: Evacuation may or may not be needed
The alarm sounding is sufficient but not the only reason to evacuate — other factors could require it.
Question 7: All completed orders are archived. Order #55 is not archived. What follows?
- Order #55 is in progress
- Order #55 is not complete (Correct answer)
- Order #55 was deleted
- Order #55 is the newest order
Correct answer: Order #55 is not complete
Contrapositive of 'completed → archived' is 'not archived → not complete.'
AON Deductive Reasoning 5
All board members voted on the resolution.
Kevin did not vote on the resolution.
What follows?