A radio message sent from Lagos at 2.pm was received at another location at 7.a.m the same day. What is the approximate longitudinal position of the location?

A radio message sent from Lagos at 2.pm was received at another location at 7.a.m the same day.

What is the approximate longitudinal position of the location?

A 90Â°E
B 90Â°W
C 105Â°E
D 105Â°W

jamb 1987 geography

The correct answer is D. 105Â°W

No explanation given

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