Chart Navigation & Plotting · Speed-Time-Distance — Distance
At 12 knots, how far does a vessel travel in 20 minutes?
- A12.0 NM
- B2.4 NM
- C6.0 NM
- D4.0 NM✓ Correct
Explanation
Distance = speed × time = 12 kt × (20/60) h = 12 × 0.3333 = 4.0 NM.
Authority: Bowditch (Pub. No. 9), Speed-Time-Distance
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