LSAT EXAM LATEST 2026 UPDATE 100 QUESTIONS
AND DETAILED VERIFIED ANSWERS FROM ACTUAL
EXAMS TEST GRADE A+
Question 1
If you study for the LSAT, then you will score well. You did not score well.
Therefore, you did not study for the LSAT. Which of the following patterns of
reasoning is most similar to the above?
(A) If it rains, the ground will be wet. The ground is not wet. So, it did not rain.
(B) If you are a lawyer, you passed the bar. You passed the bar. So, you are a
lawyer.
(C) All cats are mammals. This is a cat. So, it is a mammal.
(D) If you exercise, you are healthy. You are healthy. So, you exercised.
(E) If you eat sugar, you gain weight. You gained weight. So, you ate sugar.
Explanation: The original argument is a valid modus tollens: If P then Q, not Q,
therefore not P. Option (A) mirrors this form. (B) and (D) are fallacious (affirming
the consequent). (C) is a categorical syllogism. (E) is also fallacious (affirming the
consequent).
Question 2
All philosophers are thinkers. Some thinkers are logicians. Therefore, some
philosophers are logicians. The reasoning above is flawed because it fails to
consider that:
(A) Some logicians may not be thinkers.
(B) All logicians could be non-philosophers.
(C) No philosophers are logicians.
(D) Some thinkers are not philosophers.
(E) All thinkers are philosophers.
, Explanation: The flaw is that “some thinkers are logicians” does not guarantee
that the logicians overlap with the philosophers. They could be entirely separate
sets. (B) identifies this possibility. (A) is false—logicians are thinkers. (C) is not
necessarily true. (D) is true but not the flaw. (E) is false.
Question 3
Environmentalist: To reduce pollution, we must either reduce car usage or invest
in clean energy. Politician: We will not reduce car usage. Therefore, we must
invest in clean energy. The politician’s reasoning is:
(A) Valid and sound.
(B) Valid but unsound.
(C) Invalid because it denies the antecedent.
(D) Invalid because it affirms the consequent.
(E) Valid as a disjunctive syllogism.
Explanation: The argument is a disjunctive syllogism: P or Q; not P; therefore Q.
This is logically valid. Its soundness depends on truth of premises, but the question
asks about reasoning form. (E) is correct. (A) and (B) are about soundness. (C) and
(D) misidentify the flaw.
Question 4
Professor: Some students who study daily earn A’s. All students who earn A’s are
happy. Therefore, some students who study daily are happy. The argument is:
(A) Invalid because it could be that no happy students study daily.
(B) Valid by syllogistic reasoning.
(C) Invalid because studying daily is not necessary for A’s.
(D) Valid because all A students are happy and some daily studiers are A students.
(E) Invalid because it confuses necessary and sufficient conditions.
Explanation: This is a valid categorical syllogism: Some S are A; All A are H;
therefore Some S are H. (D) correctly explains the validity. (A) is false. (C) and (E)
describe potential flaws not present.
Question 5
Either the defendant is guilty or the witness is lying. If the witness is lying, the
AND DETAILED VERIFIED ANSWERS FROM ACTUAL
EXAMS TEST GRADE A+
Question 1
If you study for the LSAT, then you will score well. You did not score well.
Therefore, you did not study for the LSAT. Which of the following patterns of
reasoning is most similar to the above?
(A) If it rains, the ground will be wet. The ground is not wet. So, it did not rain.
(B) If you are a lawyer, you passed the bar. You passed the bar. So, you are a
lawyer.
(C) All cats are mammals. This is a cat. So, it is a mammal.
(D) If you exercise, you are healthy. You are healthy. So, you exercised.
(E) If you eat sugar, you gain weight. You gained weight. So, you ate sugar.
Explanation: The original argument is a valid modus tollens: If P then Q, not Q,
therefore not P. Option (A) mirrors this form. (B) and (D) are fallacious (affirming
the consequent). (C) is a categorical syllogism. (E) is also fallacious (affirming the
consequent).
Question 2
All philosophers are thinkers. Some thinkers are logicians. Therefore, some
philosophers are logicians. The reasoning above is flawed because it fails to
consider that:
(A) Some logicians may not be thinkers.
(B) All logicians could be non-philosophers.
(C) No philosophers are logicians.
(D) Some thinkers are not philosophers.
(E) All thinkers are philosophers.
, Explanation: The flaw is that “some thinkers are logicians” does not guarantee
that the logicians overlap with the philosophers. They could be entirely separate
sets. (B) identifies this possibility. (A) is false—logicians are thinkers. (C) is not
necessarily true. (D) is true but not the flaw. (E) is false.
Question 3
Environmentalist: To reduce pollution, we must either reduce car usage or invest
in clean energy. Politician: We will not reduce car usage. Therefore, we must
invest in clean energy. The politician’s reasoning is:
(A) Valid and sound.
(B) Valid but unsound.
(C) Invalid because it denies the antecedent.
(D) Invalid because it affirms the consequent.
(E) Valid as a disjunctive syllogism.
Explanation: The argument is a disjunctive syllogism: P or Q; not P; therefore Q.
This is logically valid. Its soundness depends on truth of premises, but the question
asks about reasoning form. (E) is correct. (A) and (B) are about soundness. (C) and
(D) misidentify the flaw.
Question 4
Professor: Some students who study daily earn A’s. All students who earn A’s are
happy. Therefore, some students who study daily are happy. The argument is:
(A) Invalid because it could be that no happy students study daily.
(B) Valid by syllogistic reasoning.
(C) Invalid because studying daily is not necessary for A’s.
(D) Valid because all A students are happy and some daily studiers are A students.
(E) Invalid because it confuses necessary and sufficient conditions.
Explanation: This is a valid categorical syllogism: Some S are A; All A are H;
therefore Some S are H. (D) correctly explains the validity. (A) is false. (C) and (E)
describe potential flaws not present.
Question 5
Either the defendant is guilty or the witness is lying. If the witness is lying, the
