Question

Unit's digit of a two-digit number is 5 less than its
ten's digit. The sum of the digits is 3 of the number.
Find the number​

Answer 1

Answer:

let the tens digit be x

ones digit is 10x-5

10x+10x-5=3

20x=8

x=8/20

x=2/5

so

Number=10×2/5+10×2/5-5

number=4+-1

3