Question

36. 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 121. Find the original number.

37. The sum of the digits of a two-digit number is 13. If the digits are interchanged, and the resulting number
is added to the original number, then we get 143. What is the original number?
If un interchange the digits and add​

Answer 1

Answer:

36. It is given that the sum is 121. The units digit is 4 and therefore the tens digit is 4 + 3 = 7. Hence, the number is 74 or 47.

37. The original number is 85.

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