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 attachment

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Answer 2

Answer:

X = 5

Y = 8

Step-by-step explanation:

We have given

X + 3 = Y

and

( 10x + y ) + ( 10y + X ) = 143

11x + 11y = 143

11x + 11(x + 3) = 143. By substation method

22x + 33 = 143

22x = 143 - 33

22x = 110

X = 110/22

X = 5

X + 3 = y

5 + 3 = y

hence proved

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