Permutations & Combinations

The art of counting. A chapter workspace for Mathematics faculty preparing JEE Main and Advanced lessons, practice sets and tests.

Topics in this chapter

• The Two Principles
• Permutations & Arrangements
• Combinations & Selections
• Circular Permutations
• Distributions, Stars & Bars
• Inclusion–Exclusion & Derangements
• Combinatorial Identities
• Geometric Counting
• Lattice Paths
• The Grand Hybrids

Also in this chapter

• Previous-year questions (source-labelled)
• Superhard collection

Ranker Faculty is independent of the exam authorities. Review every question and solution before assigning it to a class.