Question

23. In a two-digit number, the unit's digit is 7 more than the tens digit . sum of the
digits is half of the whole number. Find the
digits and number.
​

Answer 1

The answer will be

18

Step-by-step explanation:

18.

Answer 2

let tens digit be x

so unit digit=x+7

given that

sum of the digit=half of whole number

x+x+7=10x+(x+7)/2

so x=1 & unit digit=8