At your current speed of 18 knots you only have enough fuel remaining to travel 316 miles. You must travel 731 miles to reach your destination. What should you reduce your speed (knots) to in order to reach your destination?

Correct Answer: Option C — 11.8

Applying the fuel consumption cubic law principle, the required speed to cover a greater distance with limited remaining bunker capacity is determined by multiplying current speed by the cube root of the distance ratio, resulting in 11.8 knots.