Problema Solution

The ten digits of a two-digit number is 4 more than the units digit. If the sum of the digit is 5 less than one-fifth of the number.Find the number.

Answer provided by our tutors

The ten digit: (x+4), the unit digit: x

So

x+4+x+5 = [10(x+4)+x]/5

So

x = 5

So the number is 95