Question

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

Answer 1

Your correct question:

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

Answer:

Let the digits of the number be = x, y

We get to know that :

x - y = 3 ( when 'x' > 'y' ) ...(1)

Now, original number = 10x + y

Digits reversed, we get = 10y + x

According to the question now :

10x + y + 10y + x = 143

=》 x + y = 13 ...(2)

Eliminate "y" from both the equations... you get :

x = 8

y = 5

Original Number = 85