UNIT 7 – PERMUTATION AND COMBINATION
Chapter 7 Solved Exercises & Notes
Select an exercise, short questions, or MCQs below to read step-by-step solutions
Exercise 7.1 Solutions
Factorial notation & fundamental principle of counting
View →
Exercise 7.2 Solutions
Permutations (nPr), word arrangements & circular permutations
View →
Exercise 7.3 Solutions
Combinations (nCr), selection problems & complementary rule
View →
Exercise 7.4 Solutions
Sample space, events, probability laws & addition theorem
View →
Chapter 7 Short Questions
Key definitions, formulas & solved board examples
View →
Chapter 7 Solved MCQs
Objective multiple-choice questions with answer key
View →