Jeannie hikes the 12 miles to Mount Overlook at a pace of 4 miles per hour, and then returns at a pace of 6 miles per hour. How long did her hike take, in hours?
Up, took 12/4=<<12/4=3>>3 hours.
Down, took 12/6=<<12/6=2>>2 hours.
Total time was 3+2=<<3+2=5>>5 hours.
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