When there is noon at G. M.T. meridian people on another place of the Earth are taking their 6 o’clock morning tea. The longitude of the place is
- A17° 30’ E
- B7° 30’ W
- C172° 30’ E
- D90° WCorrect
Explanation
The earth rotates 360 degrees in 24 hours, which means it rotates 15 degrees every hour.
To solve this, first find the time difference between the two places. Noon is 12:00 PM and the other place is at 6:00 AM. This is a difference of 6 hours.
Since the time at the other place is earlier than GMT, the location must be to the West of the Prime Meridian.
Now, multiply the time difference by the rate of rotation: 6 hours multiplied by 15 degrees per hour equals 90 degrees.
Therefore, the longitude is 90 degrees West.
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