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Permutations and Combinations
Permutations and Combinations — JEE Questions, Notes & Weightage
Class 11 Algebra NEET weightage: High 669 questions
Covers the fundamental counting principle, permutations and combinations of distinct/identical objects, and circular permutations. A consistently high-yield, conceptually tricky chapter — word-problem-style counting questions are tested every year.
Practice all 669 Permutations and Combinations questions →Frequently asked questions
Why do students find this chapter difficult despite knowing the formulas?
The challenge is rarely the formulas themselves — it's correctly identifying which counting scenario (with/without repetition, ordered/unordered, with restrictions) a word problem describes before applying them.
What question type is most common in JEE?
Counting problems with restrictions (e.g. specific letters/digits together or never together, or forming numbers with given digit constraints) are the most frequently repeated, highest-difficulty format.