Chapter 6 • Class 11 Mathematics
Permutations and Combinations
Class 11 Maths Permutations and Combinations — fundamental principle of counting, factorial, nPr, nCr and their applications.
Study by topic — one focused page each
1
Fundamental Principle of Counting and Factorial
Counting sounds like the most elementary thing in mathematics, yet beyond a handful of objects, listing every possibility by hand becomes hopeless. Th…
Start this topic → 2Permutations
A permutation is an arrangement of objects in a definite order. The instant the question cares about which object goes where first place versus second…
Start this topic → 3Combinations
A combination is a selection of objects where order does not matter. Choosing a committee, a hand of cards, a set of questions to attempt in each case…
Start this topic →Chapter-wide tests
Online Test
10 MCQ • 20 min
IMO / Olympiad Practice
Olympiad level • 20 min
📝 Full Chapter Test (Download & Print)
35 marks • 75 min • with answer key