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UPSC Civil Service Exam Questions

Q1: In an old map, line PQ was drawn to a magnetic bearing of 6°32', the magnetic declination at that time being 1° East. The present magnetic declination is 9°42' East. The magnetic bearing to which the line is set at present is

A 357° 50'

B 356° 50'

C 3° 10'

D 2° 10'

ANS:A - 357° 50'

@Karan.

First, we have found out true bearing.

TB is MB plus East declination always. (ie if E is given add if W is given subtract). Then you got TB. From that TB only u r gonna find the MB.

So, MB +Eis TB.
Here you need MB.ie TB -E.



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