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Find the value of n such that nP5=42 x...

Find the value of n such that
`nP_5=42 xx nP_3,n>4`

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MAXIMUM PUBLICATION-PERMUTATION AND COMBINATIONS-EXAMPLE
  1. Consider all the letters of the word 'FALIURE' How many words can be...

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  2. Consider all the letters of the word 'FALIURE' How many words begin ...

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

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  4. How many words, with or without meaning, can be formed using all the l...

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  5. If 2nC3 : nC3 = 12:1 find n.

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  6. What is the number of ways of choosing 4 cards from a pack of 52 playi...

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  7. If nC9 = nC8 find nC17

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  8. A committee of 5 person is to be selected from a group of 4 men and 5 ...

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  9. If nC9 = nC8 find nC17

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

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

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  12. If nC5 = nC4 find nC8

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

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

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

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

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

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

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

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

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