Question

sum of digits of a two digit number is 9 when we interchange the digits it is found that the resulting new number is greater than the original number than by 27 what is the 2 digit number ​

Answer 1

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The new number is greater than the old number by 27, i.e. Adding the two equations, we get 2y = 12 or y = 6. Thus,

x = 3. Therefore, the original number is 36.