CBSE Class 11 Permutation and Combinations Worksheet C

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1. If    

2. Write relation between  ⁿp_r . and ⁿC_r  

3. What is L_ⁿ

4. If ⁿC_{0  =}1 what is the value of ⁹⁹C_o

5. How many words, with or with not meaning each of 2 vowels and 3 consonants can be flamed from the letter of the word DAUGHTER?

6. The English alphabet has 5 vowels and 21 consonants. How many words with two different vowels and 2 different consonants can be flamed from the alphabet?

7. In how many of the distinct permutations of the letters in MISSISSIPPI do the four I’s not come together?

8. In how many ways can 4 red, 3 yellow and 2 green discs be arranged in a row if the discs of the same colors are in distinguishable?

9. Find the number of permutations of the letters of the word ALLAHABAD.

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

11. Find the value of n such that

12. A committee of 7 has to be farmed from 9 boys and 4 girls in how many ways can this be done when the committee consists of 

(i) Exactly 3 girls? (ii) Attest 3 girls? (iii) Almost 3 girls?

Click on link below to download CBSE Class 11 Permutation and Combinations Worksheet C.