🔍 Key Concepts

• Fuel consumption rate in tons per mile based on the first part of the voyage • Relationship between speed, distance, and time: ( \text{Speed} = \frac{\text{Distance}}{\text{Time}} ) • How fuel rate changes with speed when a new speed is given and total fuel available is known

💭 Think About

• First, find how many tons of fuel per mile were used on the 824‑mile leg. What simple division gives you that? • Once you know tons per mile, use the 221 tons remaining to find how many miles that fuel would cover at a similar consumption rate. Which operation connects fuel on hand, fuel-per-mile, and distance? • Check whether you actually need to use the 18‑knot speed for this problem, or if the information given already lets you solve it without changing the consumption rate.

✅ Before You Answer

• Compute and write down the fuel consumption per mile from the first leg (tons/mile) before doing anything else. • Make sure units are consistent: miles with miles, tons with tons, not tons per hour or per day unless you convert correctly. • Before choosing an answer, quickly multiply your found miles by the tons-per-mile rate to see if it comes back close to 221 tons. If not, re-check your math.