A Rolling Lemon

https://pixabay.com/en/meter-the-speedometer-6-800-miles-1088413/

My lousy car has an odometer without 4s — in every position, the counter advances from 3 directly to 5. For example, when it read 000039 I drove one mile and watched it roll over to 000050. Today the odometer reads 002005. How many miles has the car actually traveled?

Click for Answer