Free Logical Deductions MCQs with Answers

• A. Sana is a cook.
• B. All cooks are bakers.
• C. Sana is a chef.
• D. Some cooks are not bakers.

Explanation: Sana belongs to the group of bakers, and every baker is a cook. Therefore, Sana must be a cook.

• A. This key is not fragile.
• B. This key is very strong.
• C. Every fragile object is metal.
• D. Some metal objects are fragile.

Explanation: The rule excludes fragility from all metal objects. Since the key is metal, it cannot be fragile.

• A. Some night workers check records.
• B. Every night worker is a nurse.
• C. No nurse works during the day.
• D. Some record checkers work only at night.

Explanation: At least one nurse works at night, and every nurse checks records. That particular night worker must therefore check records.

• A. Omar is older than Rafi.
• B. Rafi is older than Omar.
• C. Omar and Rafi are the same age.
• D. Zain is older than Omar.

Explanation: Age comparison is transitive. If Omar is older than Zain and Zain is older than Rafi, Omar is older than Rafi.

• A. Some campers are not lazy.
• B. All campers are fit.
• C. No camper is a hiker.
• D. Some lazy people are hikers.

Explanation: The campers who are hikers must be fit. Since no fit person is lazy, those campers must not be lazy.

• A. Some poets are not silent.
• B. All teachers are poets.
• C. Some poets are silent.
• D. No reader is a teacher.

Explanation: At least one person is both a poet and a teacher. No teacher is silent, so that poet must not be silent.

• A. Some volunteers are certified.
• B. All volunteers are mechanics.
• C. Some certified workers are not volunteers.
• D. Every mechanic is a volunteer.

Explanation: The volunteer mechanics are trained, and every trained worker is certified. Therefore, at least some volunteers are certified.

• A. Some sealed boxes contain a token.
• B. All sealed boxes contain a token.
• C. Some red boxes are missing tokens.
• D. No sealed box is counted.

Explanation: The sealed red boxes are red boxes, so they contain tokens. Those tokens are counted and are not missing, but the necessary conclusion is…

• A. Some assistants of analysts are not trained.
• B. Every temporary worker assists an analyst.
• C. Some analysts are temporary workers.
• D. Every intern is trained and certified.

Explanation: A temporary intern exists and every intern assists an analyst. Because no trained person is temporary, that intern is not trained, so some…

• A. Some guides accompany a ranger who is not inexperienced.
• B. Every ranger accompanies an inexperienced guide.
• C. Some guides are trained.
• D. No guide accompanies a ranger.

Explanation: An inexperienced guide exists, and every guide accompanies a trained ranger.

• A. Hira is a musician.
• B. Every musician is a violinist.
• C. Hira teaches music.
• D. Some musicians are not violinists.

Explanation: Hira belongs to the group of violinists, and every violinist is a musician. Therefore, Hira must be a musician.

• A. Usman is not a pedestrian.
• B. Every pedestrian is a cyclist.
• C. Usman is a pedestrian.
• D. No cyclist owns a bicycle.

Explanation: The first premise excludes every cyclist from the pedestrian group. Since Usman is a cyclist, he cannot be a pedestrian.

• A. The gym opens before the library.
• B. The library opens before the gym.
• C. The cafeteria opens before the library.
• D. The gym opens before the cafeteria.

Explanation: The library comes before the cafeteria, and the cafeteria comes before the gym. Therefore, the library must come before the gym.

• A. Some mugs are breakable.
• B. All breakable things are mugs.
• C. No mugs are ceramic cups.
• D. All mugs are breakable.

Explanation: At least some mugs belong to the ceramic cup group. Since every ceramic cup is breakable, those mugs must be breakable.

• A. No writer is impatient.
• B. Some writers are not impatient.
• C. Every poet submits work.
• D. Some impatient writers are poets.

Explanation: Some writers are poets, and no poet is impatient. Those particular writers are therefore not impatient.

• A. All volunteers are prepared.
• B. Some volunteers are not unprepared.
• C. No scout is a volunteer.
• D. Every unprepared person is a volunteer.

Explanation: Some volunteers are scouts, so those volunteers are trained. No trained person is unprepared, so some volunteers are not unprepared.

• A. No intern is careless.
• B. Some interns are not careless.
• C. All artists are sculptors.
• D. Some careless people are interns.

Explanation: The interns who are sculptors are also artists and observant. Since no observant person is careless, those interns are not careless.

• A. Some researchers are not unregistered.
• B. All researchers are cyclists.
• C. No cyclist wears a helmet.
• D. Every unregistered person is a researcher.

Explanation: Some researchers are cyclists, so those researchers wear helmets. No helmet wearer is unregistered, so some researchers are not…

• A. All volunteers are archivists.
• B. Some volunteers are not careless.
• C. No assistant checks sources.
• D. Every careless person is an archivist.

Explanation: Some assistants are archivists, so they are historians, source-checkers, and methodical.

• A. All interns are not temporary.
• B. Some interns are not temporary.
• C. No intern is certified.
• D. Every temporary intern is a surveyor.

Explanation: Some interns are surveyors, so they are trained and certified. No certified worker is temporary, so those particular interns are not…