You have steamed 925 miles at 13.5 knots, and consumed 181 tons of fuel. If you have 259 tons of usable fuel remaining, how far can you steam at 16 knots?
• Fuel consumption rate (tons of fuel per mile) based on the first part of the voyage • How a change in speed (knots) can affect fuel consumption per mile in exam-style problems • Using the remaining usable fuel to find total possible steaming distance at the new speed
• From the initial data (925 miles, 181 tons), what is your fuel burned per mile? How many miles per ton? • Using that rate, how many miles can you go on 259 tons of fuel, assuming the same consumption per mile? • Once you compute the distance, which answer choice is closest to your calculated value, and does the stated 16 knots change the DISTANCE or only the TIME?
• Carefully compute fuel per mile: tons ÷ miles (or miles per ton: miles ÷ tons) without rounding too early • Verify whether the problem expects you to change the consumption rate when speed changes, or to assume same rate for the exam calculation • After finding distance, do a quick reasonableness check: is the new distance proportionally larger or smaller than 925 miles based on the ratio of remaining fuel to fuel already used?
No comments yet
Be the first to share your thoughts!