Question

The sum of the two digits of a number is 10. If the number is subtracted from the number obtained by reversing its digits, the result is 54. Find out the number? *​

Answer 1

For this type of problems ,I derived a formula,using that we can solve any problem .

Formula: small digit=(9A+or- k)/18

A=sum of the digits=10

K=the number obtained by reversing its digits=54