You have steamed 449 miles at 19 knots and burning 476 barrels of fuel per day. You must decrease your consumption to 185 barrels per day with 362 miles left in your voyage. What must you reduce your speed (kts) to in order to burn this amount of fuel?

Correct Answer: Option B — 13.2

Applying Bowditch cubic fuel consumption equations, the required speed is derived from the ratio of new to old consumption rates. Adjusting from 476 to 185 barrels per day while factoring remaining distance results in a mandatory speed reduction to 13.2 knots.