Question

Sum of a two digit number and number formed by interchange it's digit is 187 then find the sum of digits

Answer 1

Answer:

17

Step-by-step explanation:

Let the first digit of the number is x and the second digit of the number be y.

then the number is given by $10\times x +y$ and

the number formed by interchanging it's digit is  $10\times y +x$

Now, according to question  

$10\times x +y$ +  $10\times y +x$= 187

$11\times x+ 11\times y= 187$

x+y= 17

Hence, the sum of the digits =17