What least no. should be added to 42724 to make it divisible by 9

8 should be added.
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8 can be the number
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42724 
4+2+7+2+4 = 19
After 19, the nearest multiple of 9 is 27.
Therefore, 27 - 19 = 8
                 = 8 will be the least number which can be added to 42724 to make it divisible by 9.
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4+2+7+2+4=19
now check what is the nearest multiple of 9 greater that 19.
that is 27.now subtract the multiple from 19
27-19=8
so if we add 8 to 19. it gives 27.
and 27 is divisible by 9.
so answer is 8.
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8  
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the sum of all the digits is 19. The most nearest multiple of 9 greater than 19 will be 27.now we will subtract it with 19  which is 8.
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