Question

1. The sum of the digits of a two-digit number is 17.
The ten's digit of the number is 1 more than the
unit's digit. Find the two-digit number.​

Answer 1

Well

Let us consider unit's place be x

Then tens place would be (x+1)

Then

According to question

(x+1)+x=17

2x+1=17

2x=16

x=8

So digit at unit's place is 8

Another digit will be 8+1=9

So the number is 98