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Según la corredera de a bordo, hemos navegado 10,4 millas en una hora. ¿Qué distancia real hemos navegado si el coeficiente de corredera es 0,97? (redondear a la décima de milla):According to the log on board, we have run 10.4 miles in one hour. What real distance have we run if the log coefficient is 0.97? (round to a tenth of a mile):
Show the answer
Correct answer: b) 10.1′
Why it is correct
Real distance = log distance × coefficient: 10.4 × 0.97 = 10.09, about 10.1 miles.
Why the others are not
- a) It is far from the result.
- c) It comes from dividing instead of multiplying.
- d) It is far from the result.
How to work it out in the exam
- Coefficient below 1: real distance is less.
Where this question comes from
- Junta de Andalucía · 2022 · 3ª convocatoria · PER Modelo A · question 40 Official paper · Official answer key
- Junta de Andalucía · 2022 · 3ª convocatoria · PER Modelo B · question 41 Official paper · Official answer key
Try it: Navigation calculations
Pending instructor review. Machine translation, not reviewed.