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In how many ways can 3 prizes be given t...

In how many ways can 3 prizes be given to 10 boys when a boy may receive any number of prizes ?

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MODERN PUBLICATION-PERMUTATIONS AND COMBINATIONS-EXERCISE
  1. Find the number of permutations of n things, taken r at a time, in whi...

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  2. How many 5-digit numbers can be formed by using the digits 5, 4, 3, 3,...

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  3. In how many ways can 3 prizes be given to 10 boys when a boy may recei...

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  4. In how many ways can 4 prizes be given to 3 boys when a boy is eligibl...

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  5. How many possible outcomes are there if 2 coin is tossed 5 times ?

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  6. There are 10 true-false Statements in a question paper. How many seque...

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  7. There are 4 candidates for the post of a lecturer in Mathematics and o...

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  8. How many numbers greater than 1000000 can be formed by using the digit...

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  9. How many 5-digit even numbers can be formed using the digits 1,2,5,4,5...

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  10. How many numbers of four digits can be formed by using the digits 1, 3...

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  11. How many numbers between 20,000 and 30,000 can be formed by using the ...

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  12. How many numbers greater than one lac can be formed by using the digit...

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  13. How many different signals can be transmitted by arranging 3 red, 2 ye...

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  14. In how many ways can 5 flags, in which 3 are red, one is white and one...

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  15. Find the number of arrangements, which can be made from the letters of...

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  16. Find the number of arrangements, which can be made from the letters of...

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  17. Find the number of arrangements, which can be made from the letters of...

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  18. Find the number of arrangements, which can be made from the letters of...

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  19. Find the number of arrangements, which can be made from the letters of...

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  20. Find the number of arrangements, which can be made from the letters of...

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