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# The difference between a number and the sum of its digits is always a multiple of

The difference between a number and the sum of its digits is always a multiple of

• Option 1)

• Option 2)

• Option 3)

• Option 4)

• Option 5)

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$Number= 10y+x$

$Sum\: of\: digits= X+y$

$Difference= 10y+x-x-y= 9y$

$Multiple\: of \: 9$

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