NECO 2023 · Paper 1 · Q34

Longitude & latitude

What is the angular difference in longitude between town A (lat. $47^\circ$ S, long. $54^\circ$ E) and town B (lat. $47^\circ$ S, long. $147^\circ$ E)?

Worked solution (try it first)

Both longitudes are east of Greenwich, so subtract them.
The difference is $147^\circ - 54^\circ = 93^\circ$ , option A.

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