Concept:Local time advances by 1 hour for every
15∘ of longitude. Places east of the Prime Meridian see later local times.
Explanation:Town X is located at
45∘ E, while the reference longitude is
0∘.
The difference in longitude is
45∘−0∘=45∘.
Each
15∘ of longitude equals 1 hour, so the time difference is
45∘÷15∘=3 hours.
Because Town X lies to the east of
0∘, its local time is ahead of the time at
0∘.
When it is noon (
12:00 p.m.) at
0∘, add the 3-hour difference:
12:00 p.m.
+3 hours
=3:00 p.m.
Answer:3:00 p.m. (Option C).