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How many 3-digit even numbers can be mad...

How many 3-digit even numbers can be made using the digits 1, 2, 3, 4, 6, 7, if no digit is repeated?

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PSEB-PERMUTATIONS AND COMBINATIONS-EXERCISE
  1. How many 3-digit numbers can be formed by using the digits 1 to 9 if n...

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  2. How many 4-digit numbers are there with no digit repeated?

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  3. How many 3-digit even numbers can be made using the digits 1, 2, 3, 4,...

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  4. Find the number of 4-digit numbersthat can be formed using the digits ...

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  5. From a committee of 8 persons, in how many ways can we choose a chairm...

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  6. Find n if "^(n-1)P3 : "^nP4 =1:9.

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  7. Find r if "^5Pr =2 "^6P(r-1).

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  8. Find r if "^5Pr = "^6P(r-1).

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  9. How many words, with or without meaning, can be formed using all the l...

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  10. How many words, with or without meaning can be made from the letters o...

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  11. How many words, with or without meaning can be made from the letters o...

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  12. How many words, with or without meaning can be made from the letters o...

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  13. In how many of the distinct permutations of the letters in MISSISSIPPI...

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  14. In how many ways can the letters of the word PERMUTATIONS be arranged ...

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  15. In how many ways can the letters of the word PERMUTATIONS be arranged ...

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  16. In how many ways can the letters of the word PERMUTATIONS be arranged ...

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  17. If "^nC8 = "^nC2 , find "^nC2 .

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  18. Determine n if "^(2n)C3 : "^nC3 =12:1

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  19. Determine n if "^(2n)C3 : "^nC3 = 11 : 1

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  20. How many chords can be drawn through 21 points on a circle?

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