Question

in a two-digit number the unit digit Is four times the tens digit and the sum of the digit is 10 . find the number

Answer 1

yes let the unit digit be x ....... and after frame eqn and solve

Answer 2

let tens digit be x
then as given unit digit is 4x
sum of digit= 10
x+4x=10
5x=10
x=2
4x is 8
so,the no is 28