We can solve it using the rule of three as:
150 nautical miles ---------------- 6 hours
X ---------------- 1 hour
Where X is the nautical miles that the cargo ship travel in one hour. Solving for X, we get:
[tex]X=\frac{150\text{ nautical miles }\cdot1\text{ hours}}{6\text{ hour}}=25\text{ nautical miles}[/tex]Answer: 25 nautical miles