Your compass reads 275°. Deviation is 6°W and variation is 9°E. What is the true course?

A. 272°
✓ 278°Correct
C. 290°
D. 260°

Why B is correct

Correcting compass to true: add east, subtract west. Compass 275° − 6°W deviation = magnetic 269°; magnetic 269° + 9°E variation = true 278°. (Bowditch Ch. 6 §602)

Cited:Bowditch Ch. 6 §602

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Your compass reads 275°. Deviation is 6°W and variation is 9°E. Wha… — USCG Exam Practice · CaptainsGround