Posted by **Marie** on Monday, May 14, 2007 at 1:27am.

John and Susan hiked up an 18-mile mountain trail at 5mph. They hiked down at 4mph. How long did the hike take?

Up time = 18 miles/5 mph

Down time = 18 miles/4 mph

Compute and add the two times.

Most people go up mountains slower than they come down. They must be unusual climbers.

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