Question

The sum of the digits of two-digit number is 9 . The number is 6 times the unit digit. Find the number.​

Answer 1

let the no be x

x+1=9

x=9-1=8

Answer 2

Let the number be (10x+y);then,

x+ y = 9 .....(i)

(10x +y) = 6y

or, 10x = 5y

or, y = 2x ....(ii)

Replacing the value of y from (ii) in (i); we get,

3x= 9

or, x = 3

Hence, the number = 10x + y= 30 + 6 = 36

HOPE I COULD HELP !!!