At your current speed of 17 knots you only have enough fuel remaining to travel 316 miles. You must travel 622 miles to reach your destination. What should you reduce your speed (knots) to in order to reach your destination?

Correct Answer: Option C — 12.1

Utilizing the cubic law of marine propulsion fuel usage, the adjusted speed is derived from the current 17 knots multiplied by the cube root of the distance quotient (316 / 622), yielding an economical steaming rate of 12.1 knots.