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Grade: 

                        
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?
8 years ago

Answers : (1)

Vaishal Shah
50 Points 
							
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!
8 years ago
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