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The number of 5 digited numbers that con...

The number of 5 digited numbers that contain 7 exactly once is

A

`41(9^(3))`

B

`37(9^(3))`

C

`7(9^(4))`

D

`41(9^(4))`

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-PERMUTATIONS & COMBINATIONS-EXERCISE-II
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  2. Number of 4 digited numbers using 0, 1, 2, 3, 4, 5 divisible by 6 with...

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  3. The number of 5 digited numbers that contain 7 exactly once is

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  5. The number of 5 letter words formed using the letters of DELHI begin a...

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  6. Number of bijections from Set-A containing n elements onto itself is 7...

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  7. Number of Surjections from Set - A containing n elements to the Set -B...

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  8. The number of ways in which 10 letters can be posted in 5 letter boxe...

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  9. The number of ways of wearing 6 different rings to 5 hands is

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  10. There are 3 candidates for a lecturership and one is to be selected by...

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  11. Number of ways in which 4 prizes can be distributed among 5 students i...

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  12. If a student is eligible for all the prizes is

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  13. number of ways in which 4 prizes can be distributed among 5 students I...

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  14. In an examination there are there are three multiple choice qu...

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  15. In a library, there are 6 copies of one book, 4 copies each of two dif...

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  16. The number of ways in which the letters of ‘ARRANGE' be arranged so th...

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  17. The number of ways in which the letters of ‘ARRANGE' be arranged so th...

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  18. The number of ways in which the letters of ‘ARRANGE' be arranged so th...

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  19. The number of ways in which the letters of ‘ARRANGE' be arranged so th...

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  20. The number of ways in which the letters of the word 'PROPORTION' be ar...

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