A ferry leaves a harbor and travels to a resort island at an average speed of 22 mph. On the return trip, because of fog, the ferry travels at an average speed of 18 mph. The total time for the trip is 5 h. How far is the island from the harbor?

Question

tkhunny · Answer

Distance = Rate * Time

Distance Out = 22 mph * Time Out
Distance Back = 28 mph * Time Back

We are given that:

Time Out + Time Back = 5 hrs

That's enough information.