Syllogisms · Question 21 · Medium
Syllogisms question 21
Statements:
Some pens are blue things.
Some blue things are costly things.
Conclusions:
I. Some pens are costly things.
II. No pen is a costly thing.
Assuming the statements to be true, which conclusion(s) logically follow(s)?
- Only conclusion I follows
- Only conclusion II follows
- Neither I nor II follows
- Either I or II follows
Answer and explanation
Answer: D. Either I or II follows
Explanation: Two 'some' statements give no definite link between pens and costly things, so neither conclusion follows on its own. But I and II are complementary (exactly one must be true), so either I or II follows.
Previous: Statements: Some cups are glasses. All glasses are bottles. Conclusions: I… · Next: Statements: All rivers are lakes. Some lakes are seas. No sea is an ocean…
Practise syllogisms
Try a fresh set of syllogisms questions with an explanation after every answer, free and without signing up: Syllogisms practice. Or sit a full placement mock test.
More syllogisms questions
- Statements: All pilots are trained people. Some trained people are doctors…
- Statements: No bird is a fish. Some fish are pets. Conclusions: I. Some pets…
- Statements: Some cups are glasses. All glasses are bottles. Conclusions: I…
- Statements: All rivers are lakes. Some lakes are seas. No sea is an ocean…
- Statements: No actor is a singer. All singers are dancers. Conclusions: I…
- Statements: All roads are paths. All paths are lanes. Some lanes are streets…
- Statements: Some teachers are coaches. No coach is a trainer. Conclusions: I…
- Statements: Some kites are birds. Some birds are planes. All planes are jets…
- Statements: All files are folders. Some folders are drives. No drive is a…
- Statements: All mobiles are screens. No screen is a radio. Some radios are…
More logical reasoning practice
Analogies · Odd One Out · Clocks & Calendars · Statements & Conclusions · Data Sufficiency · Puzzles · Number Series · Letter Series
LogicWiz Exams home · All practice topics · Placement mock tests · Daily 10 challenge