====== Question 9 Exercise 6.3 ====== Solutions of Question 9 of Exercise 6.3 of Unit 06: Permutation, Combination and Probablity. This is unit of A Textbook of Mathematics for Grade XI is published by Khyber Pakhtunkhwa Textbook Board (KPTB or KPTBB) Peshawar, Pakistan. ====Go To==== [[math-11-kpk:sol:unit06:ex6-3-p7 |< Question 8 ]]