What is the time difference between two places located at 120°E and 60°W?

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Question: What is the time difference between two places located at 120°E and 60°W?

Options:

Correct Answer: 9 hours

Solution:

The total difference in degrees is 120° + 60° = 180°. 180° * 4 minutes = 720 minutes = 12 hours. The time difference is 12 hours.

What is the time difference between two places located at 120°E and 60°W?

What is the time difference between two places located at 120°E and 60°W?

Step 1: Identify the longitudes of the two places. One is at 120°E and the other is at 60°W.
Step 2: Convert the western longitude (60°W) to a positive value for calculation. This means we treat it as 60°.
Step 3: Add the two longitudes together: 120° (E) + 60° (W) = 180°.
Step 4: Understand that each degree of longitude represents a time difference of 4 minutes.
Step 5: Multiply the total degree difference (180°) by the time per degree (4 minutes): 180° * 4 minutes = 720 minutes.
Step 6: Convert minutes to hours. There are 60 minutes in an hour, so divide 720 minutes by 60: 720 minutes ÷ 60 = 12 hours.
Step 7: Conclude that the time difference between the two places is 12 hours.

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