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There are 20 persons, among whom two are...

There are 20 persons, among whom two are brothers. Find the number of ways in which we can arrange the 20 persons around a round table so that there is exactly one person between the two brothers.

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  1. There are 20 persons, among whom two are brothers. Find the number of ...

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  2. There are 20 persons, among whom two are brothers. Find the number of ...

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  3. There are 20 persons, among whom two are brothers. Find the number of ...

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  4. Suppose that 5 persons A, B, C, D and E sit around a circular table In...

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  5. Suppose that 5 persons A, B, C, D and E sit around a circular table In...

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  6. 10 persons are invited for a party In how many ways can they and the ...

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  7. 10 persons are invited for a party. In how many ways will two particu...

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  8. Evaluate the following ^14C3

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  9. Evaluate the following ^12C10

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  10. Evaluate the following ^(n+1)Cn

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  11. If ^nC10=^nC12 find ^23Cn

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  12. If ^npr=720 and ^nCr=120 find r

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  13. It was found at a certain dinner meeting that after every member had s...

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  14. In how many ways a committee of 5 members can be selected from 6 men a...

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  15. If m parallel lines in plane are intersected by a family of n parallel...

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  16. In how many ways can a cricket team of 11 of players be selected from ...

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  17. In how many ways can a cricket team of eleven be chosen out of a batch...

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  18. In how many ways can a cricket team of eleven be chosen out of a batch...

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  19. A question paper has two parts, part A and part B, each containing 10 ...

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  20. A committee of 6 is to be formed from 6 men and 4 women. In how many w...

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