Asked by shehzad

sum of the digits of a two digit number is 12. the given number exceeds the number obtained by interchanging the digit by 36. find the given number.

Answers

Answered by Steve
If the number is xy, then

x+y=12
10x+y = 36+10y+x

Now just find x and y.

If that's too hard, just think of the pairs of digits that add to 12, and try them out.
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