Question

the sum of the digit of a two digit number is 14 if the number formed by reversing the digit is less than the original number by 18 find the original number

Answer 1

Swapping digits in a 2 digit number always gives a difference between the 2 numbers of 9 x the difference between the digits.
18/9 = 2
So find 2 numbers whose difference is 2, and whose sum is 14.
x+y = 14
x-y = 2
2x = 16
x = 8
y = 6
--> 86 and 68