Question

the sum digits of two digit number is 9. the number obtained by the reversing the digits is great than the number by 9. then the number is​

Answer 1

Answer:

Given that the number obtained by interchanging the digits exceeds the given number by 27

10y+x=10x+y+27

9x−9y=−27

On taking 9 as common

x−y=−3

Adding equation (1) and (2)

x+y=9

x−y=−3

2x=6

x=3

3+y=9

y=6

Therefore, the number is 10x+y is 36