Question

the sum of digits of a two digit number is 9 if 27 is subtracted from the number its digits are interchanged find the number

Answer 1

let the number is 10x+y and
so if the digits interchanged then it would be 10y+x
so,
x+y=9 (1)
and 10x+y-27=10y+x
so 9x-9y-27=0
so x-y=3 (2)
by adding equs 1 and 2
we get
2x=12
so x=6 and y=3
so our number is 63

Answer 2

63 is the answer of ur question.
Plz mark my answer as brainlist