Question

in a two digits number the sum of the
two digits is 8. If Is is added to the
number its digits are reversed Find
the number.​

Answer 1

Answer:

let the number be 10x+y

Step-by-step explanation:

atq =>

x+y=8 ......... 1

and....

10x+y +15 = 10y +x

9x-9y = -15

-3x +3y = 5 .....2

multiplying eqn 1 by 3

3x +3y = 24.....3

adding eqn. 1 and 3

3x-3x +3y+3y = 24 +5

6y = 29

y = 29/6

and

x = 8 -29/6

x = 19/6

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