Question

In a two digit number the tens digit is three times more than the number and the units digit when reversed the number formed is 36 less than the original number find the original number

Answer 1

let the ten's digit be x
units digit be y
x=3y
x-3y=0.....................1
10y+x=10x+y+36
9y-9x=36
/9
y-x=4......................2
add (1) & (2)
-2y=4
y=-2
x=3y
x=-6
The number is -62