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Find out number of permutations that can...

Find out number of permutations that can be had from the letters of the word ARRANGE
(i) Do the words starts with R.
(ii) Do the words begin with N and end in R ?

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AAKASH INSTITUTE-PERMUTATIONS AND COMBINATIONS -Try Yourself
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  4. How many numbers greater than 50,000 can be formed by using the digits...

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  5. How many numbers greater than a million can be formed by using the dig...

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  6. In how many ways can the letters of the word INSURANCE be arranged , s...

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  8. The letters of word ZENITH are written in all possible ways. If all ...

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  9. If all the permutations of the lettters of the word INDIA are arranged...

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  10. Evaluate : ""^(75)C(73)

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  11. Evaluate : ""^(13)C(10)

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  12. Find n if ""^(n)C(4)=""^(n)C(6)

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  13. If ""^(n)C(10)=""^(n)C(13) , then find the value of ""^(n)C(2)

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  14. If ""^(15)C(x)=""^(15)C(x+3) , then find the value of X.

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  15. Find ""^(18)C(3)+^(18)C(2)

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  16. Verify that ""^(9)C(5)+""^(9)C(4)=""^(10)C(5)

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  17. If .^(n)C(r-1): .^(n)C(r): .^(n)C(r+1)=3:4:5, find the values of n and...

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  18. Prove that : (""^(n)C(r+1))/(""^(n)C(r))=(n-r)/(r+1)

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  19. In how many ways a committee of 7 members can be selected from 10 memb...

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  20. From a class of 30 student , 3 are to be chosen for a competition . In...

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