whats that supposed to mean
Speed is constant. 50 miles = 1 hour. 600/50 = 12. 1hr(12) = 12 hours.
The US English System of measurement grew out of the manner in which people secured measurements using body parts and familiar objects. For example, shorter ground distances were measured with the human foot and longer distances were measured by paces, with one mile being 1,000 paces. Capacities were measured with household items such as cups, pails (formerly called gallons) and baskets.
