Question

in a two digit number the unit digit four
time the temsdigit and the sum of the digit is 10 find the number

Answer 1

The number is 82.

Unit digit be 4x
Tens digit be x

4x + x = 10

x = 2

So,
Unit digit is 8, and
Tens digit is 2.

-WonderGirl

Answer 2

Let the ten's digit be x
So , the unit digit will be 4x according to the question
x+4x=10
5x=10
x=2
So, first no. = 2
Second no.= 4x=4×2 = 8 Therefore the no. is 28