How many miles were driven on 6 gallons of gas?

The way to work out how many parts there are per shift would be as follows: if there are 2 parts produced every second, this means there are 120 produced every minute (60 times 2), and if you then multiply this 120 again to work out how many parts are made in an hour you will get 7,200. If you times this by 10 again you will get 72,000 parts made in a 10 hour shift.