At town Y (20°S, 30°E) the time is 2 p.m. (1400 hours) and at that moment the time is 5 p.m. (1700 hours) at town X (Lat. 20°N). What is the longitude of town X? Show your working.
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Answer:The longitude of town X is 75°E.
Explanation:
If a person is travelling to east direction fro prime meridian he will gain time,as per question time of town X is 3 hour ahead from town Y its show that the town X is in east direction from town Y,
At every 15° person will gain 1 hour if he/she is travelling to east direction from prime meridian . Here town X is 3hour ahead from town Y which mean 3 hour :15 × 3= 45°
So, 45°+30°E=75°E
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