Two ferries travel across a lake 50 miles wide. One ferry goes 5 miles per hour...
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Two ferries travel across a lake 50 miles wide. One ferry goes 5 miles
per hour slower than the other. If the slower ferry leaves 1 hour before
the faster and arrives at the opposite shore at the same time as the other
ferry, what is the speed of the slower ferry?
Answer rating: 100% (QA)
Let s call the speed of the faster ferry S miles per hour The slower ferry travels 5 miles per hour slower so its speed is S 5 miles per hour Now letView the full answer