Question

Perform the following steps listed below and check whether the answer is a
multiple of 9?
Step-1 Choose a number between 100 and 1000
Step-2 Interchange its first and last digits to make another number
Step-3 Subtract the small number from the largest number
Step-4 Repeat step-2 for the number obtained in step-3
Step-5 Now add the numbers obtained in step-3 and step-4.
Try with some other starting number between 100 and 1000 and check
whether the answer is a again a multiple of 9.

Answer 1

yes my answer come the number wich I have choose o ly

Answer 2

Yes the answer will always the multiple of 9
As you can take any number
I take 92 interchange it 29 subtract 92-29=63
now interchange once more 36 add 99,its the multiple of 9