Hi Gursimran,
Please check Example 20 of Chapter 7 Class 11 here https://www.teachoo.com/2401/609/Example-20---How-many-words-each-of-3-vowels-and-2-consonants/category/Examples/
Written on March 5, 2017, 12:13 p.m.
Hi Gursimran,
Please check Example 20 of Chapter 7 Class 11 here https://www.teachoo.com/2401/609/Example-20---How-many-words-each-of-3-vowels-and-2-consonants/category/Examples/
Written on March 5, 2017, 12:13 p.m.