The magnetic bearing of a line AB was N 59° 30' W in the

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The magnetic bearing of a line AB was N 59° 30' W in the year 1967, when the declination was 4° 10' E. If the present declination is 3°W, the whole circle bearing of the line is

1. 299° 20'
2. 307° 40'
3. 293° 20'
4. 301° 40'

Correct Option: D

True bearing = magnetic bearing ± declination
= N 59° 30' W – 4° 10' E
= N 55° 20' W
WCB = 360° – 55° 20'. = 304° 40'
W.C. magnetic bearing = 304° 40' – 3° = 301° 40'