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JAMB Geography 2023 Paper

Question : 65

Total: 75

The difference in time between two longitudes is approximately

Solution:

Concept:

Time varies with longitude because the Earth rotates

360^\circ

24

hours.

Explanation:

The Earth completes one full rotation of

360^\circ

24

hours.

So,

360^\circ = 24 \times 60

minutes

= 1440

minutes.

Therefore,

1^\circ

of longitude corresponds to

\frac{1440}{360} = 4

minutes of time.

This means the time difference between two longitudes that are

1^\circ

apart is about

4

minutes.

Answer:

4

minutes.

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