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If nC5 = nC4 find nC8...

If `nC_5 = nC_4` find `nC_8`

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MAXIMUM PUBLICATION-PERMUTATION AND COMBINATIONS-EXAMPLE
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  2. In How many ways can a team of 4 boys and 3 girls be selected from 6 b...

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  3. If nC5 = nC4 find nC8

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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  19. A student is Instructed to answer any 8 out of 12 questions. How man...

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  20. A student is Instructed to answer any 8 out of 12 questions. How man...

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