Logical and Deductive Reasoning Flashcards
7 cards from real LAPD practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Logical and Deductive Reasoning flashcards as text
An officer observes: 'Whenever it rains, traffic incidents on the 101 increase.' There are no increased traffic incidents today. What is the most logical conclusion?
Answer: It is not raining today
If rain caused incidents and there are no extra incidents, rain has not occurred — contrapositive reasoning.
Detectives know that only employees with keycard access can enter the server room. The suspect does not have keycard access. What follows?
Answer: The suspect did not enter the server room
Without keycard access, entering the server room is impossible under the stated rule.
At a crime scene, footprints A and B are found. Print A belongs to the victim. Print B is size 11. The suspect wears size 9. What is the most logical inference?
Answer: Print B does not match the suspect's shoe size
Print B is size 11 and the suspect wears size 9, so Print B does not match the suspect.
All robbery suspects in this case were wearing dark clothing. Witness B says the person they saw wore bright orange. What can be deduced?
Answer: The person in orange is not one of the robbery suspects in this case
If all suspects wore dark clothing and this person wore orange, they do not fit the suspect profile established in this case.
Officer Kim must either write the incident report or conduct the follow-up interview, but her supervisor says she did NOT conduct the follow-up interview. What follows?
Answer: Officer Kim wrote the incident report
With an inclusive or and one option eliminated, the other must be true.
A series of thefts occurred on Monday, Wednesday, and Friday. A theft is reported on Sunday. Which statement best applies logical analysis?
Answer: Sunday's theft may or may not be related — additional evidence is needed
A pattern deviation alone is insufficient to confirm or deny connection without further evidence.
Statements: 'Some detectives are also certified trainers. All certified trainers attend the annual conference.' Which conclusion is definitely true?
Answer: Some detectives attend the annual conference
The detectives who are certified trainers must attend the conference, so at least some detectives attend.