Matt found that the odometer in his car is faulty. After it reaches 8 it will skip 9 and show 0. This fault shows up in every digits place. Thus , for example if the odometer read 18 km and after travelling 1 km it would read 20km. While travelling from town A to town B , he noticed the following two readings :
At A : 126503
At B : 126623
Find out the distance between A and B.
This is my first problem and I hope that the answer I provide is correct !