Test Index

WAEC Geography 2020 Papers

Question : 19

Total: 50

Solution:

Concept:

The Earth rotates through

360^\circ

in 24 hours, so every

15^\circ

of longitude corresponds to a 1-hour time difference.

Explanation:

Town A is on longitude

15^\circ

E, and town B is on longitude

45^\circ

Longitude difference

= 45^\circ - 15^\circ = 30^\circ

Time difference

= \dfrac{30^\circ}{15^\circ} = 2

hours.

Since town B is east of town A, its local time is ahead.

Add the time difference to town A's time:

6:00\text{ a.m.} + 2\text{ hours} = 8:00\text{ a.m.}

Answer:

8.00\text{ a.m.}

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