Logical Reasoning Syllabus, Important Topics and Preparation Strategy for SSC CGL, CHSL, MTS

Logical reasoning tests how well you think and not what you remember. In SSC exams it covers statements, conclusions, syllogism, Venn diagrams and puzzle-type questions. These logical reasoning syllabus and strategy notes for SSC list the important topics, give a 4-week plan, the main tricks and a daily routine, and point to the detailed notes for each topic.

Important Topics of Logical Reasoning

4-Week Study Plan

Main Tricks

• Use only the statement given. Do not add outside facts.
• Be careful about the words all, some, only, always and never.
• Use the Venn diagram for All, Some and No type questions.
• Use the contrapositive for if-then statements.
• Use the assume-and-check method for puzzles.
• Keep a note of the either-or rule (same subject and predicate, complementary pair, neither follows alone).

Time Management

• Spend only 30 to 40 seconds on a statement-conclusion question and about 90 seconds on a puzzle.
• If a question needs more than a minute, skip it and come back.
• There is negative marking in SSC Tier-I, so attempt only the sure questions.

Daily Routine

1. Read one topic note (20 minutes).
2. Solve 15 questions of the same topic with a timer.
3. Write the wrong questions in an error notebook and the reason.
4. On Sunday, revise the error notebook and take a 25 question test.

Quick Tips

• Study one topic per day and solve 15 questions of it.
• Use the error notebook every week.
• Practise with a timer.
• Learn the rules of the words all, some, no, only.

Quick Revision Points

• Logical reasoning tests thinking and not memory.
• Use only the statement for inference and conclusion.
• Use Venn diagrams for syllogism.
• Use the contrapositive for if-then.
• Use assume-and-check for truth and lie puzzles.

Practice Questions With Answers

1. What should you use to solve an inference question?
   Answer: Only the given statement
2. Which diagram helps in All, Some and No questions?
   Answer: Venn diagram
3. What is the contrapositive of "If P then Q"?
   Answer: If not Q then not P
4. What method is used in truth and lie puzzles?
   Answer: Assume and check
5. What are the three conditions of the either-or case?
   Answer: Same subject and predicate, a complementary pair, and neither follows alone
6. How much time should you give to a statement-conclusion question?
   Answer: About 30 to 40 seconds
7. What should you do with a question that needs more than one minute?
   Answer: Skip it and come back at the end
8. Is there negative marking in SSC Tier-I?
   Answer: Yes (0.50 marks for a wrong answer)
9. What should you note in an error notebook?
   Answer: The wrong question and the reason for the mistake
10. Which words need extra care in logical reasoning?
    Answer: All, some, only, always and never

How to Practise This Chapter

Practise 10 questions every day and write the steps on paper. Then attempt timed sets from our practice papers and the previous year papers page. See all topics on the Logical Reasoning notes page, read the previous topic Truth and Lie Puzzles. Also read the Reasoning notes. The Reasoning Syllabus and Tricks note has the full pattern.

Frequently Asked Questions

What is logical reasoning?

It is the part of reasoning that tests how well you think and judge statements, arguments and conclusions.

What topics come in logical reasoning for SSC?

Statement and conclusion, assumption, argument, course of action, cause and effect, syllogism and Venn diagram.

How should I start logical reasoning?

Start with statement and conclusion, and syllogism with Venn diagrams.

How many days are needed?

About 4 weeks of daily practice are enough for the basic topics.

Is there a formula in logical reasoning?

No. It uses rules, such as the contrapositive and the Venn diagram.

Which tools help in logical reasoning?

Venn diagrams, the either-or rule and the assume-and-check method.

How can I improve my accuracy?

Read the statement carefully and avoid outside facts.

How can I improve my speed?

Solve questions with a timer, and learn the rules of all, some and no.

Is logical reasoning asked in SSC exams?

Yes. Statement-conclusion and syllogism questions come in SSC reasoning, but the number changes from year to year.

What are common mistakes?

Using outside knowledge and not checking the either-or case.

Do I need an error notebook?

Yes. It shows your weak topics.

What is the best book or source?

Use the topic notes, previous year papers and mock tests.