Question

kindly help me wid it...

Answer 1

Hi friend,

The number is 54.
When it is added 5+4=9.
When the 9 is subtracted from 54 the answer is 45 which is the reverse number.

Hope it helps....

Answer 2

let
ten's place digit = x
one's place digit = y
the number = 10x+y---(1)
if 9 is sutracted to (1) it is equal to reverseing the number
10x+y -9 =10y+x
9x-9y-9=0
divide each term with 9
x-y-1=0
x-y = 1----(2)
given
x+y =9---(3)
add (2) and (3)
2x=10
x= 10/2
x=5

put x=5 in (3)
5+y=9
y=4
therefore
the required number = 10x+y
=10*5+4
=50+4
=54