A high tide is occurring at Charleston, South Carolina (30°W, 54°N). At approximately what other longitude is a high tide occurring?
A) 150°E
B) 30°E
C) 60°E
D) 60°W
E) 150°W

Question

Quizplus · Accepted Answer

High tides occur approximately every 12 hours and 25 minutes, which means they occur at the same time at locations roughly 180° apart in longitude. Since Charleston is at 30°W, the opposite longitude would be 150°E.

A High Tide Is Occurring at Charleston, South Carolina (30°W