The sum of a 2 digit number is 5.the number obtained by interchanging the digits exceeds the original number by 9.find the number.
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the original number is 23
steps
let the original number be ab
a+b=5
ba= ab+9
23+9= 32
2+3= 5
steps
let the original number be ab
a+b=5
ba= ab+9
23+9= 32
2+3= 5
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