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Old 07-03-2014   #1
burgess
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Default Problem on boats and streams

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?
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Old 07-10-2014   #2
MAS1

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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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Old 07-11-2014   #3
burgess
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Originally Posted by MAS1 View Post
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.
Thank you so much
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