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A person wishes to make up as many ...

A person wishes to make up as many different parties of 10 as he can out of 20 friends each party consisting of the same number . In how many of the parties the same man is found ?

A

380

B

19

C

90378

D

92378

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The correct Answer is:
D
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DIPTI PUBLICATION ( AP EAMET)-PERMUTATIONS & COMBINATIONS-EXERCISE 1B (COMBINATIONS )
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  8. A group cotains 6 men and 3 women . A committee is to be formed ...

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  9. Out of 6 gentlmen and 4 ladies a committee of 5 is to be ...

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  13. How many different committee of 5 can be formed from 6 men an...

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  14. 6 jobs are vacant in an office 8 men and 5 women have applied...

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  15. In how many ways can 8 Indians, 4 Americans and 4 Englilshmen be seate...

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  16. A box contains 2 white balls 3 black balls and 4 red balls ...

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  17. There are two cars of which one holds not more than 5 and ...

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  19. A student is to answer 10 out 13 questions in an examination such ...

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