<PRE><B>Question 335791</B>
How do you write this problem? Two sailboats 400 meters apart are sailing toward each other. one is moving at a rate of 10m per sec and the other is moving at a rate of 15m per sec. in how many seconds will the boats pass each other?
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Their closing speed is (10+15) meter/second
400 meters/25 meter per second = 16 seconds
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And in how may seconds will the boats be 400 meters apart again?
There separation speed is also 25 meters/second
400 meters/25 meters /er second = 16 seconds
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Cheers,
Stan H.</PRE>