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If alpha=\ \ ^4 C2,\ then find the valu...

If `alpha=\ \ ^4 C_2,\ ` then find the value of `\ ^(alpha)C_2dot`

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RD SHARMA ENGLISH-COMBINATIONS-All Questions
  1. If \ ^(28)C(2r):\ ^(24)C(2r-4)=225 : 11 , find r

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  2. if C(2n,3):C(n,2)=44:3 find n

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  3. If alpha=\ \ ^4 C2,\ then find the value of \ ^(alpha)C2dot

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  4. For all positive integers n , show that \ ^(2n)Cn+\ ^(2n)C(n-1)=1/2(\ ...

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  5. From a class of 32 students, 4 are to be chosen for a competition. In ...

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  6. Three gentlemen and three ladies are candidates for two vacancies. A ...

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  7. If there are 12 persons in a party, and if each two of them shake hand...

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  8. A question paper has two parts, Part A and party B each containing 10 ...

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  9. In how many ways a committee of 5 member can be selected from 6 men an...

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

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  11. What is the number of ways of choosing 4 cards from a pack of 52 pl...

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  12. Out of 5 men and 2 women, a committee of 3 is to be formed. In how man...

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  13. For the post of 5 teachers, there are 23 applicants, 2 posts are re...

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  14. How many triangles can be formed by joining the vertices of a hexagon?

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  15. A polygon has 44 diagonals. The number of its sides are

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  16. From a class of 25 students, 10 are to be chosen for an excursion p...

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  17. In how many ways can 7 plus (+) and 5 minus (-) signs be arranged in a...

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  18. In how many ways can 21 books on English and 19 books on Hindi be plac...

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  19. From a group of 15 cricket players, a team of 11players is to be ch...

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  20. How many different boat parties of 8, consisting of 5 boys and 3 girls...

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