If the number obtained by interchanging the digits of a two digit number is 18 more than the original number and the sum of the digits is 8 then what is the original number?

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If the number obtained by interchanging the digits of a two digit number is 18 more than the original number and the sum of the digits is 8 then what is the original number? Answer: 35

This is a digit-based number puzzle. By forming equations from the given conditions (difference after interchange and sum of digits), we find the original number is 35.