anil completes the 72km journey from bristol to cardif in 48 mins the then drives 69km to swansea from cardif at an average speed of 60km/h work out anils average speed (in km/h) for this total journey from Bristol to Swansea plz help

The mountain springs water company has two departments, purifying and bottling. the bottling department received 67,000 liters from the purifying department. during the period, the bottling department completed 65,000 liters, including 3,000 liters of work in process at the beginning of the period. the ending work in process was 5,000 liters. how many liters were started and completed during the period?