A ferry, when empty , travels twice as fast as when it is full. It travels 20 miles south with a cargo, spends 30 minutes for unloading , and returns to its original port empty in a total of 8 hours , what is the speed of the ferry when it is empty?
Created: 8 months ago | Updated: 2 months ago

Related Questions

Created: 8 months ago | Updated: 2 months ago