Question

The digits of a two- digit number differ by 3. If the digits are interchanged, and the resulting number is added to the original number, we get 143. What can be the original number?​

Answer 1

Answer is in the photo given above

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Answer 2

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HERE IS UR ANSWER

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Let digits of numbers be a and b such that number is (10a+b)

ACCORDING TO THE QUESTION

a-b=3 or b-a=3...(1)

10a+b+10b+a=143

a+b=13...(2)

solving both equations a=5,b=8 or a=8,b=5

thus,required number is 85 or 58