When it is 12 noon at Greenwich, what is the local time at a place on longitude 45 degrees East?
Answer and explanation
Correct answer: B. 3.00 pm
- Step 1: The earth turns 15 degrees every hour. Step 2. 45 / 15 = 3 hours, and east is ahead, so the time is 3.00 pm. Answer: 3.00 pm. Why not the others: 9.00 am: Places east of Greenwich are ahead, not behind. 1.00 pm: That adds only 1 hour instead of 3. 12.45 pm: That treats degrees as minutes.
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