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How many different boat parties of 8 con...

How many different boat parties of 8 consisting of 5 boys and 3 girls can be made from 20 boys and 10 girls?

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RS AGGARWAL-COMBINATIONS-Exercise 9B
  1. A bag contains 5 black and 6 red balls. Determine the number of ways i...

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  2. Find the number of ways of selecting 9 balls from 6 red balls, 5 wh...

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

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  4. In how many ways can a student choose a programme of 5 courses if 9...

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  5. A sports team of 11 students is to be constituted, choosing at least 5...

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  6. From 4 officers and 8 clerks, in how many ways can 6 be chosen (i) to ...

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  7. A cricket team of 11 players is to be selected from 16 players includi...

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  8. In how many ways can a cricket team be selected from a group of 25 pla...

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

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  10. In an examination a student has to answer 4 questions out of 5 ques...

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  11. 21.A student has to answer 10 questions, choosing at least 4 fromeach ...

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  12. A candidate is required to answer 7 questions out of 12 questions whic...

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  13. Out of 6 teachers and 8 students, a committee of 11 is to be formed. I...

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  14. A committee of 7 has to be formed from 9 boys and 4 girls. In how m...

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

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  16. A committee of 5 is to be formed out of 6 men and 4 ladies. In how man...

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  17. From a class of 14 boys and 10 girls, 10 students are to be chosen for...

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  18. Determine the number of 5 card combinations out of a deck of 52 cards ...

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  19. Find the number of diagonals of (i) a hexagon, (ii) a decagon, ...

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  20. How many triangles can be obtained by joining 12 points, four of whi...

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