Free Practice Questions for LSAT Logical Reasoning (Must Be True)

Free LSAT drill for Logical Reasoning (MBT):

1) Every biology major must take at least one chemistry course. All chemistry courses require lab work. No online courses have lab work.

Which one of the following must be true based on the information provided?

A) Some biology majors do not take online courses.

B) All biology majors are required to do lab work.

C) No chemistry courses are online courses.

D) All online courses are biology courses.

E) All lab work is for chemistry courses.

‍

2) All the employees at a technology company use either a Mac or a PC. Some of the employees who use a Mac also use a tablet, but none of the employees who use a PC use a tablet. All the employees who use a tablet have attended a security training seminar. Some employees who use a Mac have not attended a security training seminar.

Which one of the following must be true based on the information provided?

A) All employees who use a PC have attended a security training seminar.

B) No employees who use a PC use a Mac.

C) All employees who use a Mac use a tablet.

D) Some employees who use a Mac and a tablet have not attended a security training seminar.

E) Some employees who use a Mac and have attended a security training seminar use a tablet.

‍

3) At a music festival, there are pop, rock, and jazz bands. Every band plays at least one genre but no band plays more than two genres. The jazz bands are all local, while some rock bands are local and others are not. All non-local bands are pop bands, and there are some local bands that play only rock music.

Which one of the following must be true based on the information provided?

A) All rock bands are also pop bands.

B) Some local bands are jazz bands.

C) No jazz bands are rock bands.

D) Some local bands play both rock and pop music.

E) All non-local bands are rock bands.

‍

4) A local art fair has a policy that only painters, sculptors, and photographers can participate. Every artist at the fair must display at least one piece of artwork, but no artist can display more than three pieces. Every sculptor is also a painter. Some painters are photographers, but no photographer is a sculptor. The fair has exactly ten artists, and all of them are painters.

Which one of the following must be true based on the information provided above EXCEPT?

A) All sculptors at the fair are also painters.

B) Some artists at the fair could be both painters and photographers.

C) No artist at the fair can display more than three pieces of artwork.

D) All artists at the fair are painters.

E) There are more than ten pieces of artwork at the fair.

‍

5) In the town of Pleasantville, the city council decided that all pet owners are required to license their pets. They also decided that only dogs and cats are considered pets. However, some households in Pleasantville have other animals like hamsters, turtles, and birds, but these are not considered pets under the new city regulation.

Which one of the following must be true based on the information provided above?

A) All households in Pleasantville have pets.

B) No dog or cat in Pleasantville is unlicensed.

C) Hamsters, turtles, and birds in Pleasantville need to be licensed.

D) Some households in Pleasantville have unlicensed animals.

E) All licensed animals in Pleasantville are either dogs or cats.

‍

Answers:

1) (C) No chemistry courses are online courses. Given the premises, it must be true that no chemistry courses are online because all chemistry courses require lab work, and no online courses have lab work.

2) (E) Some employees who use a Mac and have attended a security training seminar use a tablet. We know from the stimulus that some Mac users also use a tablet, and all tablet users have attended a security training seminar. Therefore, it must be true that some Mac users who have attended a security training seminar use a tablet.

3) (B) Some local bands are jazz bands. We know from the stimulus that all jazz bands are local. Therefore, it must be true that there are local bands that are jazz bands.

4) (E) There are more than ten pieces of artwork at the fair. The stimulus states that every artist must display at least one piece of artwork, and no artist can display more than three pieces. Therefore, there could be anywhere from ten to thirty pieces of artwork at the fair. The other statements (A to D) can be directly inferred from the stimulus.

5) (E) All licensed animals in Pleasantville are either dogs or cats. This statement must be true given that the city council only considers dogs and cats as pets, and all pets are required to be licensed. Other options are not necessarily true based on the information provided.