If a clock on a ship indicates that it is 2:00 PM in its home port,while another clock on the ship indicates that it is 12:00 noon at the ship's present location,what is the difference in longitude between the ship's position and its home port?
A)The ship is 2° east of its home port.
B)The ship is 2° west of its home port.
C)The ship is 30° east of its home port.
D)The ship is 30° west of its home port.

Question

Quizplus · Accepted Answer

Since the ship's clock is two hours behind the home port clock, it means the ship is two time zones behind. Each time zone represents 15 degrees of longitude. Therefore, 2 time zones x 15 degrees of longitude per time zone = 30 degrees of longitude difference. Since the ship's clock is behind the home port clock, the ship is west of its home port. Therefore, the correct answer is D) The ship is 30° west of its home port.

If a Clock on a Ship Indicates That It Is