CJBAT Logical Reasoning 2 — Questions and Answers
Question 1: All officers in the precinct carry a radio. Officer Diaz works in the precinct. Which conclusion follows logically?
- Officer Diaz carries a radio (Correct answer)
- Officer Diaz dislikes radios
- Only Officer Diaz carries a radio
- Radios are required by law
Correct answer: Officer Diaz carries a radio
If all officers carry a radio and Diaz is one, Diaz must carry a radio.
Question 2: No reports are filed late. The Smith report was filed. What can be concluded?
- The Smith report was filed on time (Correct answer)
- The Smith report was rejected
- The Smith report was lost
- The Smith report was never filed
Correct answer: The Smith report was filed on time
Since no reports are filed late and it was filed, it was on time.
Question 3: If a suspect flees, then a pursuit is logged. No pursuit was logged. What follows?
- The suspect did not flee (Correct answer)
- The suspect fled quietly
- A pursuit happened anyway
- The log was deleted
Correct answer: The suspect did not flee
By contrapositive, no pursuit logged means the suspect did not flee.
Question 4: Some evidence bags are sealed. All sealed bags are tagged. Which must be true?
- Some evidence bags are tagged (Correct answer)
- All evidence bags are tagged
- No evidence bags are tagged
- Only sealed bags exist
Correct answer: Some evidence bags are tagged
Sealed bags are a subset that is tagged, so some evidence bags are tagged.
Question 5: Either the alarm sounded or the door stayed locked. The door did not stay locked. What follows?
- The alarm sounded (Correct answer)
- The door broke
- Nothing happened
- Both occurred
Correct answer: The alarm sounded
In an either/or, ruling out one option confirms the other.
Question 6: Every detective passed the firearms test. Brooks did not pass the firearms test. Which is true?
- Brooks is not a detective (Correct answer)
- Brooks is a detective
- Brooks retook the test
- Brooks passed another test
Correct answer: Brooks is not a detective
If all detectives passed and Brooks did not, Brooks is not a detective.
Question 7: If it rains, the patrol uses raincoats. The patrol used raincoats. What is the strongest valid conclusion?
- It may or may not have rained (Correct answer)
- It definitely rained
- It did not rain
- Raincoats cause rain
Correct answer: It may or may not have rained
Affirming the consequent is invalid, so rain cannot be confirmed from the coats alone.
CJBAT Logical Reasoning 2
All officers in the precinct carry a radio.
Officer Diaz works in the precinct.
Which conclusion follows logically?