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Syllogism Practice Questions with Detailed Solutions – Level 3

Advanced syllogism practice on definite conclusions, 'some not' statements, choosing the right statement set and cannot-be-true cases, with reasoning explained for each.

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Questions, answer key and solutions.

Questions
50
Duration
60 min
Marks
50

Negative marking

Attempts
100
Access
Free
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Normal practice, or a Simulated test

Both use the same questions. Normal practice is untimed and needs no account: choose an option and the answer and solution appear at once. The Simulated test is the real computer-based format, with one 60-minute clock, a question palette and full screen, and your score, the key and the solutions arrive when you submit.

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Simulated

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The computer-based test format: one clock, a question palette, and a score the moment you submit.

  • A clock that does not pause. 60 minutes from the moment you begin, and the paper is submitted for you when it reaches zero.
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About this test

Syllogism Level 3 Practice Questions on Definite and Impossible Conclusions

This Level 3 syllogism set on Aptitude360 helps you check how accurately you judge conclusions drawn from 'all', 'some' and 'no' statements. It covers definite conclusions, 'some not' statements, picking the statement set that leads to a given conclusion, and spotting what cannot be true. Every question has a worked solution.

Topics covered in this syllogism set

  • Conclusions from chains of 'all', 'some' and 'no' statements
  • Conclusions of the 'some not' type
  • Choosing the set of statements that definitely leads to a given conclusion
  • Identifying which statement or conclusion cannot be true
  • Finding the conclusion that does not logically follow

Key syllogism rules to revise

  • A definite conclusion must hold in every possible diagram, not just in one
  • 'All A are B' with 'all B are C' gives 'all A are C'
  • 'No' statements separate two groups completely, so any overlap between them cannot be true
  • 'Some A are not B' follows only when the statements force part of A outside B

How to prepare for hard syllogism questions

  • Draw every valid arrangement of the circles the statements allow, and accept a conclusion only if it holds in all of them
  • Be careful with 'some not' conclusions, as they often fail when only 'all' and 'some' statements are given
  • In cannot-be-true questions, look for the option that contradicts a 'no' statement or an 'all' chain

Who should take this Level 3 syllogism set

It is meant for reasoning aspirants who are comfortable with basic syllogism and want practice on advanced statement-conclusion cases.

FAQs about Syllogism Practice Questions with Detailed Solutions – Level 3

What is syllogism in reasoning?
Syllogism is a reasoning topic in which you assume the given statements are true and decide which conclusions logically follow from them. The statements use words such as all, some and no.
How do you solve syllogism questions using Venn diagrams?
Draw each statement as circles: one circle inside another for an 'all' statement, overlapping circles for a 'some' statement and separate circles for a 'no' statement. A conclusion follows only if it is true in every valid diagram.
When does a 'some not' conclusion follow in syllogism?
It follows only when the statements force part of one group to lie outside the other. For example, 'no A is B' combined with 'some C are A' gives 'some C are not B'.
What does a definite conclusion mean in syllogism?
A definite conclusion is one that stays true in every diagram consistent with the statements. If even one valid diagram makes it false, it does not follow.

Test structure

How the paper is split, and how long each part runs. A section you have finished cannot be returned to.

SectionQuestionsTime
Syllogism Level 35060 min

Marking & rules

Total marks
50 across 50 questions.
Negative marking
A wrong answer costs marks. Leaving a question unanswered costs nothing.
Attempts
100 in total. An attempt is spent the moment you begin one.

What you get when you submit

The analysis is ready the moment you submit the paper.

Score and accuracy

Marks, percentage, right, wrong and skipped, and the time you took.

Section by section

The same figures for each section, so a weak one cannot hide in an average.

The full answer key

Every question with your answer, the right one, the working, and the video where there is one.

Where you stand

Your score against the spread of everyone else who has sat this test.

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