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

1. The time at the Greenwich Mean Time (G.M.T.) meridian (0° Longitude) is given as noon (12:00). 2. At another place on Earth, the time is 6 o'clock in the morning (06:00). 3. The time difference is 12:00 - 06:00 = 6 hours. 4. Since the time at the place is earlier than G.M.T., the place must be to the West (W) of the G.M.T. meridian. 5. The Earth rotates 360° in 24 hours, meaning it rotates 15° per hour (360/24 = 15). 6. A time difference of 6 hours corresponds to a longitude difference of 6 hours * 15°/hour = 90°. 7. Therefore, the longitude of the place is 90° W.