NCERT Solutions for Class 11 Maths Chapter 7 Permutations and Combinations Ex 7.1 July 27, 2021 by Raju Access Class 11 Maths NCERT Solutions Chapter 7 Permutations and Combinations Ex 7.1, contains solutions for all Exercise 7.1 Class 11 questions. Permutations and Combinations Class 11 NCERT Solutions Maths Chapter 7 Exercise 7.1