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There are three prizes to be distributed...

There are three prizes to be distributed among 6 students. In how many ways can this be done when
no boy gets all prizes.

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JBD PUBLICATION-PERMUTATIONS AND COMBINATIONS-EXAMPLE
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  8. How many different words can be formed by using the letters of the wor...

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  9. How many different words can be formed by using the letters of the wor...

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

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

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

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  13. In an examination, a question paper consists of 12 questions divided i...

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

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  15. A group consists of 4 girls and 7 boys. In how many ways can a team of...

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  16. A group consists of 4 girls and 7 boys. In how many ways can a team of...

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  17. A group consists of 4 girls and 7 boys. In how many ways can a team of...

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  18. If ^nC(r-1)=36, ^nCr=84 and ^nC(r+1)=126, then find ^rC2.

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  19. A bag contains 6 white marbles and 5 red marbles. Find the number of w...

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  20. A bag contains 6 white marbles and 5 red marbles. Find the number of w...

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