Question Answers

Sahay Sir > Question Answers > NCERT Exemplar Class 11 > Maths > Chapter 7 - Permutation and Combination > 3. How many 4-letter code can be formed using the first 10 letters of the English alphabet, if no letter can be repeated?

3. How many 4-letter code can be formed using the first 10 letters of the English alphabet, if no letter can be repeated?

3. How many 4-letter code can be formed using the first 10 letters of the English alphabet if no letter can be repeated?