The manual gives 3½ hours for the 18-knot case; the calculation gives 3 hours 20 minutes (200 minutes).
You have to cover 60 miles. How long does it take at 18 knots? And at 6 knots?
- Distance
- 60 NM
- Speed
- 18 kn / 6 kn
Solution worked out by us from the course material: to be checked by the instructor.