Under the 6-minute rule, the distance in nautical miles covered in 6 minutes equals what expression in terms of speed S (in knots)?

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Multiple Choice

Under the 6-minute rule, the distance in nautical miles covered in 6 minutes equals what expression in terms of speed S (in knots)?

In knots, speed means nautical miles per hour. Six minutes is one-tenth of an hour, so distance = speed × time = S × (1/10) = S/10 nautical miles. That’s the quick 6-minute rule: distance in NM equals speed in knots divided by 10. The other expressions would correspond to different time intervals (for example, 12 minutes, 60 minutes, or 10 minutes), not 6 minutes.

In knots, speed means nautical miles per hour. Six minutes is one-tenth of an hour, so distance = speed × time = S × (1/10) = S/10 nautical miles. That’s the quick 6-minute rule: distance in NM equals speed in knots divided by 10. The other expressions would correspond to different time intervals (for example, 12 minutes, 60 minutes, or 10 minutes), not 6 minutes.

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