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Old 07-10-2014   #2

Join Date: Dec 2008
Posts: 249

Originally Posted by burgess View Post
Required help to solve math homework problems

What is the time taken by the boat to go to 68 km downstream, If a boat can travel with a speed of 13 km/hr in still water and the speed of the stream is 4 km/hr?
Since the boat is headed downstream we can add the rate of the boat in still water to the rate of the stream giving us a combined rate of 17 km/hr.

distance = rate x time
68 km = 17 km/hr x time
68/17 hr = time
4 hrs = time.
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