LAPD Logical and Deductive Reasoning 3

Question 1

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?

Accepted Answer

It is not raining today

Answer

If rain caused incidents and there are no extra incidents, rain has not occurred — contrapositive reasoning.

Question 2

Detectives know that only employees with keycard access can enter the server room. The suspect does not have keycard access. What follows?

Accepted Answer

The suspect did not enter the server room

Answer

Without keycard access, entering the server room is impossible under the stated rule.

Question 3

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?

Accepted Answer

Print B does not match the suspect's shoe size

Answer

Print B is size 11 and the suspect wears size 9, so Print B does not match the suspect.

Question 4

All robbery suspects in this case were wearing dark clothing. Witness B says the person they saw wore bright orange. What can be deduced?

Accepted Answer

The person in orange is not one of the robbery suspects in this case

Answer

If all suspects wore dark clothing and this person wore orange, they do not fit the suspect profile established in this case.

Question 5

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?

Accepted Answer

Officer Kim wrote the incident report

Answer

With an inclusive or and one option eliminated, the other must be true.

(LAPD) Los Angeles Police Department Practice Test

(LAPD) Los Angeles Police Department Practice Test

LAPD Logical and Deductive Reasoning 3