Three campers left their campsite by canoe and paddled downstream at an average rate of 10 mph. They then turned around and paddled upstream at an average rate of 5 mph to return to their campsite. How long did it take the campers to canoe downstream if the total trip took 1 hr?
Added by F-Tima J.
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Then, the time it took them to canoe upstream is (1 - x) hours, since the total trip took 1 hour. The distance they traveled downstream is 10x miles, and the distance they traveled upstream is 5(1 - x) miles. Since the distances are equal, we can set up the Show more…
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Boat Speed Callie took 20 min to drive her boat upstream to water-ski at her favorite spot. Coming back later in the day, at the same boat speed, took her 15 min. If the current in that part of the river is $5 \mathrm{km}$ per hr, what was her boat speed?
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