A flight plan covers 600 nautical miles in 3 hours. What is the average speed in knots?

To determine the average speed in knots, the formula to use is:

[

\text{Average Speed (knots)} = \frac{\text{Distance (nautical miles)}}{\text{Time (hours)}}

]

In this scenario, the distance covered is 600 nautical miles, and the time taken is 3 hours. Plugging these values into the formula gives:

[

\text{Average Speed} = \frac{600 \text{ nautical miles}}{3 \text{ hours}} = 200 \text{ knots}

]

Thus, the calculated average speed is 200 knots. This is the correct answer because it accurately reflects the relationship between distance and time in the context of nautical measurements, where one knot equals one nautical mile per hour. This basic formula allows for a straightforward assessment of speed for any given distance and time in navigation and aviation.