What is the longitude of a town Y whose local time is 12:00 noon when...

Geography

JAMB 2020

What is the longitude of a town Y whose local time is 12:00 noon when Greenwich mean time is 6:00pm

A. 90\(^o\) W
B. 180\(^o\) E
C. 150\(^o\) W
D. 80\(^{o}\) E

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Correct Answer: Option A

Explanation

Town Y? W|12:00noon ←(substract) Longitude(0^o)|E 6:00pm
Time difference = 6:00pm - 12:00pm = 6hours
Recall: 15o ≡ 1 hour therefore 6hours ≡ (15 x 60)o= 90o
Arrow is pointing to the west;hence, the latitude of Town Y is 90oW

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What is the longitude of a town Y whose local time is 12:00 noon when...

Correct Answer: Option A

Explanation

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