Syllogisms MCQs: Deductive reasoning involving categorical propositions

All humans are mortal.
Some philosophers are humans.
Conclusion:
A) All philosophers are mortal.
B) Some humans are philosophers.
C) All mortals are philosophers.
D) Some mortals are humans.

Answer: A) All philosophers are mortal.

No mammals can fly.
All bats are mammals.
Conclusion:
A) Some bats can fly.
B) No bats can fly.
C) Some mammals can fly.
D) All mammals are bats.

Answer: B) No bats can fly.

All apples are fruits.
Some fruits are red.
Conclusion:
A) All red things are apples.
B) Some apples are red.
C) Some fruits are not apples.
D) All red things are fruits.

Answer: B) Some apples are red.

All birds can fly.
Some penguins cannot fly.
Conclusion:
A) No penguins are birds.
B) Some birds cannot fly.
C) Some birds are penguins.
D) All penguins are birds.

Answer: C) Some birds are penguins.

No reptiles are mammals.
Some cats are mammals.
Conclusion:
A) No cats are reptiles.
B) Some cats are not reptiles.
C) All cats are mammals.
D) Some mammals are not cats.

Answer: C) All cats are mammals.

All roses are flowers.
Some tulips are flowers.
Conclusion:
A) Some flowers are not roses.
B) Some tulips are roses.
C) No roses are tulips.
D) All flowers are roses.

Answer: B) Some tulips are roses.

No trees are animals.
All oak trees are trees.
Conclusion:
A) Some oak trees are not animals.
B) All animals are oak trees.
C) No oak trees are animals.
D) Some animals are trees.

Answer: A) Some oak trees are not animals.

Some pens are not pencils.
All pencils are stationery.
Conclusion:
A) Some stationery items are pens.
B) All stationery items are pencils.
C) Some pencils are pens.
D) No pens are stationery.

Answer: A) Some stationery items are pens.

All politicians are humans.
Some criminals are politicians.
Conclusion:
A) Some criminals are humans.
B) All humans are criminals.
C) Some humans are not politicians.
D) All politicians are criminals.

Answer: A) Some criminals are humans.

No snakes are mammals.
Some reptiles are snakes.
Conclusion:
A) No mammals are reptiles.
B) Some mammals are not snakes.
C) Some reptiles are not mammals.
D) All mammals are snakes.

Answer: B) Some mammals are not snakes.

All students are learners.
Some learners are diligent.
Conclusion:
A) Some students are not diligent.
B) All diligent people are students.
C) All students are diligent.
D) Some diligent people are not learners.

Answer: C) All students are diligent.

No lions are herbivores.
All carnivores are lions.
Conclusion:
A) No carnivores are herbivores.
B) Some herbivores are not lions.
C) Some lions are not carnivores.
D) All herbivores are lions.

Answer: C) Some lions are not carnivores.

Some athletes are not sprinters.
All sprinters are runners.
Conclusion:
A) Some athletes are runners.
B) All runners are sprinters.
C) Some sprinters are not athletes.
D) No sprinters are athletes.

Answer: A) Some athletes are runners.

All dogs are animals.
No cats are dogs.
Conclusion:
A) No cats are animals.
B) Some cats are not animals.
C) All animals are dogs.
D) Some dogs are not cats.

Answer: B) Some cats are not animals.

Some computers are laptops.
No laptops are smartphones.
Conclusion:
A) No computers are smartphones.
B) Some smartphones are not laptops.
C) Some laptops are not computers.
D) All smartphones are laptops.

Answer: C) Some laptops are not computers.

No fish are mammals.
All whales are mammals.
Conclusion:
A) No whales are fish.
B) Some fish are not mammals.
C) All mammals are whales.
D) Some mammals are not fish.

Answer: A) No whales are fish.All roses are flowers.
Some flowers are yellow.
Conclusion:
A) Some yellow things are roses.
B) No yellow things are flowers.
C) Some roses are not yellow.
D) All flowers are roses.

Answer: C) Some roses are not yellow.

No planets are stars.
All stars are celestial bodies.
Conclusion:
A) No planets are celestial bodies.
B) Some celestial bodies are not planets.
C) All celestial bodies are stars.
D) Some stars are not planets.

Answer: B) Some celestial bodies are not planets.

All athletes are fit.
Some fit people are swimmers.
Conclusion:
A) All swimmers are athletes.
B) Some athletes are not swimmers.
C) No swimmers are fit.
D) Some swimmers are athletes.

Answer: D) Some swimmers are athletes.

No actors are singers.
Some singers are performers.
Conclusion:
A) No performers are actors.
B) Some performers are not singers.
C) Some singers are actors.
D) All actors are performers.

Answer: B) Some performers are not singers.

All birds are animals.
No animals are fish.
Conclusion:
A) No fish are birds.
B) Some birds are not fish.
C) Some animals are not birds.
D) All fish are animals.

Answer: A) No fish are birds.

Some lawyers are not judges.
No judges are police officers.
Conclusion:
A) Some police officers are not judges.
B) No police officers are lawyers.
C) Some judges are not lawyers.
D) All lawyers are judges.

Answer: A) Some police officers are not judges.

No flowers are trees.
All trees are plants.
Conclusion:
A) No plants are flowers.
B) Some plants are not trees.
C) Some flowers are not trees.
D) All flowers are plants.

Answer: A) No plants are flowers.

Some books are not novels.
All novels are stories.
Conclusion:
A) No stories are books.
B) Some stories are not novels.
C) Some books are not stories.
D) All novels are books.

Answer: C) Some books are not stories.

All athletes are disciplined.
Some disciplined people are successful.
Conclusion:
A) Some successful people are athletes.
B) No successful people are disciplined.
C) Some athletes are not successful.
D) All disciplined people are athletes.

Answer: A) Some successful people are athletes.

No insects are mammals.
All birds are animals.
Conclusion:
A) Some mammals are not birds.
B) No animals are insects.
C) Some birds are not mammals.
D) All mammals are birds.

Answer: C) Some birds are not mammals.

All fruits are healthy.
No chocolates are fruits.
Conclusion:
A) Some healthy things are not fruits.
B) No chocolates are healthy.
C) Some fruits are not chocolates.
D) All chocolates are fruits.

Answer: B) No chocolates are healthy.

Some computers are laptops.
All laptops are electronic devices.
Conclusion:
A) Some electronic devices are computers.
B) No electronic devices are laptops.
C) Some laptops are not computers.
D) All computers are laptops.

Answer: C) Some laptops are not computers.

No humans are robots.
All robots are machines.
Conclusion:
A) Some machines are not robots.
B) No machines are humans.
C) Some robots are not humans.
D) All robots are humans.

Answer: A) Some machines are not robots.

Some fruits are not apples.
All apples are fruits.
Conclusion:
A) Some fruits are apples.
B) No apples are fruits.
C) Some fruits are not apples.
D) All fruits are apples.

Answer: C) Some fruits are not apples.

All flowers are plants.
Some plants are not trees.
Conclusion:
A) Some trees are flowers.
B) No trees are flowers.
C) Some flowers are not trees.
D) All trees are plants.

Answer: C) Some flowers are not trees.

Some cars are not bicycles.
All bicycles are vehicles.
Conclusion:
A) Some vehicles are not cars.
B) No vehicles are bicycles.
C) Some bicycles are not cars.
D) All cars are bicycles.

Answer: A) Some vehicles are not cars.

No cats are birds.
Some birds are not mammals.
Conclusion:
A) No mammals are cats.
B) Some cats are mammals.
C) Some birds are mammals.
D) All mammals are birds.

Answer: C) Some birds are mammals.

All planets are celestial bodies.
No celestial bodies are stars.
Conclusion:
A) Some stars are not planets.
B) No stars are celestial bodies.
C) Some celestial bodies are planets.
D) All planets are stars.

Answer: A) Some stars are not planets.

No boats are cars.
All cars are vehicles.
Conclusion:
A) Some vehicles are not boats.
B) No vehicles are cars.
C) Some cars are not boats.
D) All boats are vehicles.

Answer: A) Some vehicles are not boats.

Some students are not teachers.
All teachers are educators.
Conclusion:
A) Some educators are not students.
B) No educators are teachers.
C) Some teachers are not students.
D) All students are educators.

Answer: C) Some teachers are not students.

No pencils are erasers.
All erasers are stationery.
Conclusion:
A) Some stationery items are not pencils.
B) No stationery items are erasers.
C) Some pencils are not stationery items.
D) All pencils are erasers.

Answer: A) Some stationery items are not pencils.

All snakes are reptiles.
Some reptiles are not crocodiles.
Conclusion:
A) Some crocodiles are snakes.
B) No crocodiles are snakes.
C) Some reptiles are crocodiles.
D) All crocodiles are reptiles.

Answer: C) Some reptiles are crocodiles.

Some planets are not stars.
No stars are comets.
Conclusion:
A) Some comets are not planets.
B) No planets are comets.
C) Some stars are not planets.
D) All planets are comets.

Answer: A) Some comets are not planets.

All mammals are warm-blooded.
No reptiles are warm-blooded.
Conclusion:
A) Some reptiles are mammals.
B) No mammals are reptiles.
C) Some warm-blooded animals are not mammals.
D) All warm-blooded animals are mammals.

Answer: B) No mammals are reptiles.

Some trees are not plants.
All plants are living organisms.
Conclusion:
A) Some living organisms are not trees.
B) No living organisms are trees.
C) Some plants are not trees.
D) All trees are plants.

Answer: A) Some living organisms are not trees.

No vegetables are fruits.
All fruits are edible.
Conclusion:
A) Some edible things are not vegetables.
B) No edible things are vegetables.
C) Some fruits are not vegetables.
D) All vegetables are fruits.

Answer: A) Some edible things are not vegetables.

All lawyers are professionals.
No professionals are athletes.
Conclusion:
A) Some athletes are not lawyers.
B) No athletes are professionals.
C) Some professionals are not lawyers.
D) All professionals are athletes.

Answer: B) No athletes are professionals.

Some diamonds are not precious stones.
All precious stones are valuable.
Conclusion:
A) Some valuable things are not diamonds.
B) No valuable things are diamonds.
C) Some precious stones are not diamonds.
D) All diamonds are precious stones.

Answer: C) Some precious stones are not diamonds.

All triangles are polygons.
Some polygons are quadrilaterals.
Conclusion:
A) Some quadrilaterals are triangles.
B) No quadrilaterals are triangles.
C) Some polygons are not triangles.
D) All triangles are quadrilaterals.

Answer: A) Some quadrilaterals are triangles.

No artists are musicians.
All musicians are creative.
Conclusion:
A) Some creative people are not artists.
B) No creative people are artists.
C) Some musicians are not artists.
D) All artists are musicians.

Answer: C) Some musicians are not artists.

Some fruits are not apples.
All apples are fruits.
Conclusion:
A) Some fruits are apples.
B) No apples are fruits.
C) Some fruits are not apples.
D) All fruits are apples.

Answer: C) Some fruits are not apples.

All humans are mortal.
Some immortals are fictional characters.
Conclusion:
A) Some fictional characters are mortal.
B) No fictional characters are mortal.
C) Some immortals are not humans.
D) All humans are fictional characters.

Answer: C) Some immortals are not humans.