Question

a three digit number x has 3 digits reverses to become y . the sum of x and y is 1535. the sum of digits of x is ?

please answer this
idk how to do it ​

Answer 1

Answer: 16

Step-by-step explanation:

x = 718

y = 817

the sum of digits of x = 7 + 1 + 8 = 16

I honestly couldn’t figure out a mathematical way to answer this so I tried substituting some numbers.