Syllogisms Reasoning Practice Questions

1. All metals conduct electricity. Some solids do not conduct electricity. Therefore:

All solids are metals

No solids are metals

Some solids are not metals

None of the above

2. Some politicians are honest. All honest people are trustworthy. Therefore:

All politicians are trustworthy

No politicians are trustworthy

Some politicians are trustworthy

Some politicians are not trustworthy

3. No mammals can breathe underwater. All whales are mammals. Therefore:

Some whales can breathe underwater

All whales can breathe underwater

No whales can breathe underwater

Some whales cannot breathe underwater

4. No fish have lungs. All dolphins have lungs. Therefore:

Some dolphins are fish

All dolphins are fish

No dolphins are fish

Some dolphins are not fish

5. 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

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

All penguins are flightless

No penguins are flightless

Some penguins are flightless

None of the above

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. All squares are rectangles. Some rectangles are blue. All blue shapes are cool. Therefore:

All squares are cool

Some squares are cool

No squares are cool

Cannot be determined

9. All dogs are loyal. Some pets are not loyal. Therefore:

All pets are dogs

No pets are dogs

Some pets are not dogs

None of the above

10. All planets are spherical. Earth is spherical. Therefore:

Earth is a planet

Earth is not a planet

Some planets are not Earth

None of the above