If the time in town (A) on longitude 20^{}E is {9: 00} am; what will be the time in town (B) longitude 80^{}E ?

Correct Answer is : ;;1.00\\;\\; 1.00;;1.00 p.m.

Correct Answer is : ;;1.00\\;\\; 1.00;;1.00 p.m.

Test Index

BECE Social Studies 2020 Paper

Question : 7

Total: 40

(A)

20^{\circ}E

\text{9: 00}

(B)

80^{\circ}E

Solution:

Concept:

The Earth rotates

15^\circ

of longitude per hour, so places east are ahead in time.

Explanation:

Longitude of Town A

= 20^{\circ}E

and Town B

= 80^{\circ}E

Longitude difference

= 80^\circ - 20^\circ = 60^\circ

Time difference

= \frac{60^\circ}{15^\circ} = 4

hours.

Since Town B is further east, its time is ahead of Town A.

9:00

a.m.

+ 4

hours

= 1:00

p.m.

Answer:

Option A: 1.00 p.m.

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