SOLUTION: A boat in distress, 21 nautical miles from a marina, travels toward the marina at 3 knots (nautical miles per hour). A coast guard cruiser leaves the marina and travels toward th

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Question 564682: A boat in distress, 21 nautical miles from a marina, travels toward the
marina at 3 knots (nautical miles per hour). A coast guard cruiser leaves
the marina and travels toward the boat at 25 knots. How long will it take
for the boats to reach each other?

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
A boat in distress, 21 nautical miles from a marina, travels toward the
marina at 3 knots (nautical miles per hour). A coast guard cruiser leaves
the marina and travels toward the boat at 25 knots. How long will it take
for the boats to reach each other?
:
Since they are going toward each other the relative speed is; 3 + 25 = 28 knots
hence; (dist/speed = time)
21%2F28 = 3%2F4 hr which is 45 minutes