Question

The sum of the 2 digit number is 15. The number obtained by reversing the digit is 9 more to
the original number. Find the number​

Answer 1

Answer:

Let the number be XY, then the reversed number is YX

X + Y = 15 (Given)

According to the condition,

10X + Y + 9 = 10Y + X

which gives, X + 1 = Y

Solving for X & Y:

We get X = 7 & Y = 8

Hence, the number is 78 ✌️