Question

The difference between a tow digit number and the number obtained by interchanging is 9 find the difference between the two digit of that number

Answer 1

Answer:

1

Step-by-step explanation:

let the two digit number = 10

10-01 = 9

so the difference between the 2 digits of that number is 1

Answer 2

Answer:

let one's digit be x and ten's digit be y

so,

number=10y+x

reverse=10x+y

A.T.P.

10y+x-10x-y=9

9y-9x=9

so,y-x=1