Question 1012Navigation General

The correct answer is B) 1.5 miles. To determine the distance to Coronation Island, you can use the formula: Distance (in nautical miles) = Time (in seconds) / 5. The time measured using the whistle echo is 16.3 seconds. Plugging this into the formula, we get: Distance = 16.3 seconds / 5 = 3.26 nautical miles. This means you are approximately 1.5 nautical miles off Coronation Island. The other options are incorrect because: A) 1.0 mile is too close based on the 16.3-second echo time. C) 2.0 miles is too far. D) 2.5 miles is also too far.