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How many three digit number can be forme...

How many three digit number can be formed using the digits 1,2,3,4,5 if repetition is not allowed?

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MAXIMUM PUBLICATION-PERMUTATION AND COMBINATIONS-EXAMPLE
  1. A committee of 5 person is to be selected from a group of 4 men and 5 ...

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  2. If nC9 = nC8 find nC17

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  3. How many three digit number can be formed using the digits 1,2,3,4,5 i...

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  4. In How many ways can a team of 4 boys and 3 girls be selected from 6 b...

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  5. If nC5 = nC4 find nC8

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  6. How many chords can be drawn through 20 points on a circle?

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  7. A bag contains 6 red and 5 blue balls. In how many ways can one choose...

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  8. Find the number of permutation of the letters of the word ALLAHABAD.

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  9. Find r ,if ^5Pr = 2 xx ^6P(r-1)

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  10. Find the value of n such that nP5=42 xx nP3,n>4

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  11. A committee of 3 persons is to be constituted from a group of 2 men an...

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  12. A committee of 3 persons is to be constituted from a group of 2 men an...

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  13. If ^nC2 : ^(2n)C1 = 3:2 find n

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  14. Find the number of words that can be formed from the letters of the wo...

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  15. If 5 xx 4Pr = 6 xx 5P(r-1) find 'r'.

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  16. How many 3 digit number can be formed with the digits 0,1,2,3 and 4?

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  17. In a Panchayath there are 10 Panchayath members. Ladies contested only...

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  18. Prove that nCr = nC(n-r)

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  19. Twenty eight matches were played in a volley ball tournament. Each tea...

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  20. If the letters of the word 'TUTOR' be permuted among themselves and ar...

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