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Number of ways in which the letters of t...

Number of ways in which the letters of the word MOBILE be arranged so that the consonants always occupy the odd places is

A

18

B

54

C

36

D

72

Text Solution

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The correct Answer is:
C
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AAKASH INSTITUTE-PERMUTATIONS AND COMBINATIONS -Assignment Section A Objective type questions (One option is correct )
  1. In a test paper there are 10 questions . Number of ways in which 6 que...

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

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

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

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

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

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

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

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  9. How many 6 digit numbers can be formed out of the digits of the number...

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  10. Number of ways in which n balls be randomly distributed in n cells is

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  11. Number of three digit numbers such that atleast one of the digits is 9...

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  12. Number of ways in which the letters of the word TAMANNA be arranged is

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  13. Number of three letter words that can be formed using only vowels but ...

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  14. Number of all permutations of the set of four letters E , O , S , P ta...

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  15. Number of ways in which 5 prizes be given away to 8 students when elac...

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  16. Number of 3 digit numbers that can be formed having unit digit as zero...

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  17. Number of different words that can be made using the letters of the wo...

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  18. Number of ways in which the letters of the word SUCCESSFUL be arranged...

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  19. Number of 6 digit numbers that can be formed using digit 2 two times ...

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  20. Number of ways in which 15 billiard balls be arranged in a row if 3 ar...

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