Syllogisms Reasoning Practice Questions

1. All diamonds are gems. Some gems are expensive. Therefore:

All diamonds are expensive

No diamonds are expensive

Some diamonds might be expensive

Cannot be determined

2. Some birds are predators. All eagles are birds. Therefore:

All eagles are predators

No eagles are predators

Some eagles are predators

Some eagles are not predators

3. No fish are mammals. All whales are mammals. Therefore:

All whales are fish

No whales are fish

Some whales are fish

Cannot be determined

4. All cats have whiskers. Some pets are cats. Therefore:

All pets have whiskers

No pets have whiskers

Some pets have whiskers

Some pets do not have whiskers

5. Some birds are flightless. All penguins are birds. Therefore:

All penguins are flightless

No penguins are flightless

Some penguins are flightless

Some penguins are not flightless

6. All planets in our solar system orbit the Sun. Pluto does not orbit the Sun. Therefore:

Pluto is a planet in our solar system

Pluto is not a planet in our solar system

Some planets in our solar system do not orbit the Sun

Not enough information

7. All smartphones are electronic devices. Some electronic devices are expensive. All expensive items are taxed. Therefore:

All smartphones are taxed

Some smartphones are taxed

No smartphones are taxed

Cannot be determined

8. No mammals can breathe underwater. All fish can breathe underwater. Some animals are mammals. Therefore:

All animals can breathe underwater

No animals can breathe underwater

Some animals cannot breathe underwater

Cannot be determined

9. All planets are celestial bodies. Some celestial bodies are not visible to the naked eye. Therefore:

All planets are visible to the naked eye

No planets are visible to the naked eye

Some planets are not visible to the naked eye

None of the above

10. All tigers are cats. All cats are mammals. Therefore:

Some tigers are mammals

All tigers are mammals

No tigers are mammals

Cannot be determined