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The number of permulations of n differen...

The number of permulations of n different objects taken K at a time , when repetitions are allowed is

A

`k^(n)`

B

`n^(k)`

C

`n!`

D

`""^(n)P_(k)`

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The correct Answer is:
B
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AAKASH INSTITUTE-PERMUTATIONS AND COMBINATIONS -Assignment Section A Objective type questions (One option is correct )
  1. In how many ways 7 members forming a committee out of 11 be selected s...

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  2. ""^(15)C(9)-""^(15)C(6)+""^(15)C(7)-^(15)C(8) equals to

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  3. The number of permulations of n different objects taken K at a time , ...

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  4. The number of words which can be formed out of the letters of the word...

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  5. The number of parallelograms that can be formed from a set of four par...

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  6. The number of ways in which three girls and ten boys can be seated in ...

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  7. IN a meeting everyone had shaken hands with everyone else, it was foun...

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  8. Number of different striaght lines that cn be formed by joining 12 dif...

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  9. A polygon has 90 diagonals , Number of its sides

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  10. Number of triangles that can be formed by joining the 10 non-collinear...

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  11. Number of different words that can be formed from 15 consonants and 5 ...

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  12. A box contains 7 red , 6 white and 4 blue balls. Number of ways of sel...

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  13. In a test paper there are 10 questions . Number of ways in which 6 que...

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  14. How many four digit natural numbers not exceeding the number 4321 can ...

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  15. Number of ways in which the letters of the word MOBILE be arranged so ...

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  16. Number of ways in which the letters of the word RIANBOW be arranged su...

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  17. Number of even numbes greater than 300 that can be formed with the dig...

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  18. There are 6 books of physics , 3 of chemistry and 4 of biology . Numbe...

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  19. A person has 5 shirts, 4 coat and 7 ties . Number of ways in which he ...

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  20. Number of ways in which 15 different books can be arraged on a shelf s...

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