How did you get on?

8 x 15 = 120 minutes reduce down to degrees = 2º. 

Variation in 2024 would be  4º 15’W  - 2º  (because it is going E) = 2º 15W

 For the next part of the question

Convert following bearings taking account of variation
125º (T) variation 8º E
320º (M) variation 4º
115º (T) variation 5º W
083º (M) variation 2º W

I use this to help my students, it may help you. My answers in the coloured cells.

C D M V T
    117º 8º E 125º
    320º 4º E 324º
    120º 5º W 115º
    083º 2ºW 081º
141º  2º W 139º 1º W 138º
In a slack tide your vessel is steering along a charted transit of 138ºT, If the compass reads 141º,  
the variation from the chart is 1ºW, what is the deviation?  -  See last row above 

Hope you enjoyed that one. Next one looming. 

 
 

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