When it is 12 noon at longitude 0 degrees, what is the time at longitude 45 degrees East?
Answer and explanation
Correct answer: C. 3 pm
- Step 1: The Earth turns 15 degrees each hour, so 45 degrees = 3 hours. Step 2. East is ahead of longitude 0, so the time is 12 noon + 3 hours = 3 pm. Answer: 3 pm. Why not the others: 9 am: East of longitude 0 the time is ahead, not behind. 4 pm: That adds one hour too many. 2 pm: That adds one hour too few.
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