Hover or tap underlined Spanish terms to see their translation and exam tip.
Nuestro GPS nos indica posición = 36º 00' N – 005º 50'W y queremos dirigirnos para pescar en un punto de posición = 36º 05'N – 006º 05'W. Queremos hacer el recorrido en 90 minutos. ¿Cuál será la velocidad aponer? ... :Our GPS shows position 36º 00' N – 005º 50'W and we want to go fishing at a point at 36º 05'N – 006º 05'W. We want to do the run in 90 minutes. What speed should we set?...:
Show the answer
Correct answer: a) 8.8 knots.
Why it is correct
Difference of latitude: 5′. Departure: 15′ × cos 36º = 12.1. Distance: 13.1 miles. Speed: 13.1 / 1.5 = 8.8 knots.
Why the others are not
- b) It would imply about 16 miles.
- c) It would imply about 18 miles.
- d) It would imply about 22 miles.
How to work it out in the exam
- 90 minutes is 1.5 hours: do not divide by 90.
Where this question comes from
- Región de Murcia · 2018 · 3ª convocatoria · PER Tipo 1 · question 43 Official paper · Official answer key
Try it: Navigation calculations
Pending instructor review. Machine translation, not reviewed.