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In how many ways, the letters of word FR...

In how many ways, the letters of word FRACTION can be arranged ?

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AAKASH INSTITUTE-PERMUTATIONS AND COMBINATIONS -Try Yourself
  1. Show that ""^(n)P(n)=2""^(n)P(n-2)

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  2. In how many ways, the letter of word NUMBER can be arranged ?

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  3. In how many ways, the letters of word FRACTION can be arranged ?

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  4. How many numbers lying between 100 and 1000 can be formed with the dig...

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  5. How many four digit numbers are there in all?

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  6. How many permulations of the letters of the word KARNAL are there ?

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  7. How many words can be formed using the letters E twice , the letter C ...

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  8. Find the number of words formed by permuting all letters of the word I...

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  9. Find the number of different words formed with the letters of the word...

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  10. How many permutations can be made out of the letters of the word TRIAN...

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  11. Find out number of permutations that can be had from the letters of th...

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  12. How many numbers greater than 50,000 can be formed by using the digits...

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

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

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  15. In how many ways can the letters of the word PATLIPUTRA be arranged, s...

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

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

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

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

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

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