Navigation General · Time-Speed-Distance
A vessel travels 90 nautical miles in 6 hours. What is the vessel's speed?
- A12 knots
- B15 knots✓ Correct
- C18 knots
- D10 knots
Explanation
S = (60 × D) / T = (60 × 90) / 360 = 5400 / 360 = 15 knots.
Authority: Bowditch (Pub. 9), Ch. 7
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