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Study Plan

Permutations and Combinations — Study Plan

CBSE · Class 11 · Mathematics

A step-by-step study plan for Permutations and Combinations, CBSE Class 11 Mathematics: what to learn first, what to practise and when to revise.

127 questions64 flashcards11 formulas & key relations5 concepts

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Study Plan

1
Day 1–2

Learn the Theory

Read the textbook chapter carefully. Note down definitions, formulas and key ideas. Focus on: 1. Fundamental Principle of Counting, 2. Factorial Notation, 3. Permutations of Distinct Objects.

2
Day 3

Practise

Solve the textbook exercises and extra practice questions. There are 127 questions available for this chapter.

3
Day 4

Revise & Test

Revise key points without looking at your notes. Take a practice quiz and mark weak areas for another pass.

4
Day 7

Spaced Revision

Come back to Permutations and Combinations after a week. Use flashcards for quick recall and try past exam questions on this chapter.

What to Focus On

  • Order of events matters in multiplication principle.
  • The principle works for two events and extends to any finite number of events.
  • This principle is the base of all counting in permutations and combinations.
  • Permutation means arrangement in order.
  • Factorial notation shortens counting expressions.
  • 0! is a defined value, not derived.
  • Repeated letters reduce the number of distinct permutations.
  • Use factorial division to remove overcounting caused by identical objects.
  • If some objects must stay together, treat them as a single block first.

Common Mistakes to Avoid

Permutation and combination are the same thing.

When digits are repeated, use nPr as usual.

0! should be found by ordinary multiplication like other factorials.

Memory Tips

Fundamental principle of counting

Generalisation of multiplication principle to three events

Permutation means order matters

Combination means order does not matter

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Frequently Asked Questions

What are the important topics in Permutations and Combinations for CBSE Class 11 Mathematics?
Key topics in Permutations and Combinations include Fundamental Principle of Counting, Factorial Notation, Permutations of Distinct Objects, Permutations with Repetition or Repeated Objects. Study these first, then practise questions on each for Class 11 exams.
How should I revise Permutations and Combinations for Class 11 exams?
Learn the core ideas first, then work through the 127 practice questions on Permutations and Combinations. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Permutations and Combinations

All CBSE Class 11 Mathematics Study Plan

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