Revelian Test Deductive Reasoning 1 — Questions and Answers
Question 1: All managers are employees. Some employees are remote workers. Which conclusion must be true?
- All managers are remote workers
- Some managers may be remote workers (Correct answer)
- No managers are remote workers
- All remote workers are managers
Correct answer: Some managers may be remote workers
Since only 'some' employees are remote workers, managers (a subset of employees) may or may not be among those remote workers, making it possible but not certain.
Question 2: If it rains, the ground gets wet. The ground is wet. What can we conclude?
- It must have rained
- It might have rained, or something else caused it (Correct answer)
- It definitely did not rain
- Rain is the only cause of wet ground
Correct answer: It might have rained, or something else caused it
A wet ground is consistent with rain but could have other causes; we cannot confirm rain was the reason from the wet ground alone.
Question 3: No birds are mammals. All penguins are birds. Which statement must be true?
- Some penguins are mammals
- All penguins are mammals
- No penguins are mammals (Correct answer)
- Some mammals are penguins
Correct answer: No penguins are mammals
Since all penguins are birds and no birds are mammals, it follows necessarily that no penguins are mammals.
Question 4: Every team that trains daily wins competitions. Team A does not win competitions. What can be deduced?
- Team A trains daily
- Team A does not train daily (Correct answer)
- Team A sometimes trains daily
- Nothing can be deduced about Team A's training
Correct answer: Team A does not train daily
By contrapositive logic, if not winning implies not training daily, then Team A does not train daily.
Question 5: Some students passed the exam. All students who passed the exam received a certificate. Which must be true?
- All students received a certificate
- Some students received a certificate (Correct answer)
- No students received a certificate
- All certificate holders are students
Correct answer: Some students received a certificate
Since some students passed and all who passed got certificates, at least those students received certificates, making 'some students received a certificate' necessarily true.
Question 6: If a number is divisible by 6, it is divisible by both 2 and 3. The number 18 is divisible by 6. What can be concluded?
- 18 is divisible by 2 only
- 18 is divisible by 3 only
- 18 is divisible by both 2 and 3 (Correct answer)
- 18 is not divisible by 2 or 3
Correct answer: 18 is divisible by both 2 and 3
Applying the given rule directly: since 18 is divisible by 6, it must be divisible by both 2 and 3.
Question 7: All red cards in the deck are hearts or diamonds. This card is a club. What must be true?
- This card is red
- This card is not red (Correct answer)
- This card is a heart
- This card could be red
Correct answer: This card is not red
Clubs are neither hearts nor diamonds; since red cards must be hearts or diamonds, a club cannot be red.
Revelian Test Deductive Reasoning 1
All managers are employees.
Some employees are remote workers.
Which conclusion must be true?