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number of 9 digit numbers divisible by 9 formed by using the digits from 0to9, if each digit used atmost is k*8!. what is the value of k?

number of 9 digit numbers divisible by 9 formed by using the digits from 0to9, if each digit used atmost is k*8!. what is the value of k?


 

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1 Answers

Vaishal Shah
50 Points
8 years ago

The no. is divisible by 9 only if the sum of digits is multiple of 9.

987654321 - 9!

87654321 - 8*8!

Total no.=17*8!

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