A riverboat tour begins by going 60 miles upstream against a 5 mph current. Then the boat turns around and returns with the current. What still-water speed should the captain use to complete the tour in 5 hours?

Question

Anonymous · Answer

speed= distance/time, speed =60/5, speed=12. because the river is travelling with a current of 5mph which takes 5mph off the speed, so the still water speed = 12+5 =17mph Speed=17 mph

adipratapsingh12 · Answer

To complete the tour in 5 hours, the captain should use a still-water speed of 20.07 mph. ;

adipratapsingh12 · Answer

To complete the tour in 5 hours, the captain should use a still-water speed of 25 mph. This was determined by analyzing the effective speeds upstream and downstream, and using the total time constraint to solve a quadratic equation. The solution yielded a valid speed of 25 mph, suitable for the trip against and with the current. 
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A riverboat tour begins by going 60 miles upstream against a 5 mph current. Then the boat turns around and returns with the current. What still-water speed should the captain use to complete the tour in 5 hours?

Answer (3)

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