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In how many ways can 4 identical black...

In how many ways can 4 identical black balls , 5 identical red balls and 6 identical green balls be arranged in a row so that at least one ball is seperated from balls of the same colour ?

A

2399976

B

21844

C

630624

D

181440

Text Solution

Verified by Experts

The correct Answer is:
C
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DIPTI PUBLICATION ( AP EAMET)-PERMUTATIONS & COMBINATIONS-EXERCISE 1A (PERMUTATIONS )
  1. The number of arrangements that can be made out the letters of ...

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  2. The number of arrangements that can be formed by taking all the ...

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  3. In how many ways can 4 identical black balls , 5 identical red ...

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  4. The number of different numbers that be can be formed by using ...

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  5. The number of 6 digited numbers less than 4,00,000 can be formed...

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  6. The number of five digited numbers greater than 50000 that ca...

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  7. IF all the words (with or without meaning ) having five letter...

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  8. The letters of the word CRICKET are permuted in all possible wa...

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  9. If all permutations of the letters of the word AGAIN are arran...

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  10. The sum of all the numbers that can be formed by taking all digits 2,...

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  11. The number of circular permutation of 8 things taken 4 at a time...

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  12. The number of ways in which 7 persons can sit around a rouund t...

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  13. The number of ways in which 7 different coloured flowers be stru...

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  14. In how many ways can five men sit around a round table so th...

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  15. The number of ways that the Chief minister and the 14 ministers ...

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  16. 20 persons were invited for a party . The number of ways that ...

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  17. The number of ways in which 5 boy and 4 girls sit around a cir...

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  18. Find the number of ways of arranging 8 men and 4 women around a circul...

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  19. The number of ways in which 7 indians and 6 pakistanies sit a...

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  20. The number of ways in which 6 men and 5 women can dine at a roun...

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