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Number of three digit numbers such that ...

Number of three digit numbers such that atleast one of the digits is 9 , if repetitions allowed is

A

252

B

648

C

864

D

468

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The correct Answer is:
A
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AAKASH INSTITUTE-PERMUTATIONS AND COMBINATIONS -Assignment Section A Objective type questions (One option is correct )
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  6. Number of ways in which n balls be randomly distributed in n cells is

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

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

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

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

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

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

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  17. Number of 7 digit telephone numbers that can be formed from the digits...

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  18. Four dice are rolled. The number of possible outcomes in which atleast...

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  19. In a badminton each player played one game with ll the other players. ...

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