The sum of two digit no. 7 . The no. obtained by interchanging the digits exceeds the original no. by 27 . Find the no.
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let digit at once place is x and at ten place is 7-x
the number is 70-9x and reverse number 7+9x
ATP
7+9x-(70-9x)=27
the number is 70-9x and reverse number 7+9x
ATP
7+9x-(70-9x)=27
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