UPSC 1998 › Geography › Astronomy & Earth–Sun System

1 question · 1998 · answers as per the UPSC key

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When there is noon at the G.M.T. meridian, people at another place of the Earth are taking their 6 o’clock morning tea. The longitude of the place is

(a) 17° 30′ E
(b) 7° 30′ W
(c) 172° 30′ E
(d) 90° W
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Answer: (d) 90° W