The digit in the units place of a two-digit number is twice the digit in ten's place. The quotient obtained when the number is divided by the sum of it's digits is 4 . Find the number.
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No.= 12
Let the ten's digit be x.
So unit's digit=2x.
Therefore , the no. =10*x+2x=12x
On dividing 12x by the sum of the digits, i. e. 3x, the quotient is 4
So 12x/3x=4 thus x=1
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