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JAMB Geography 2018 Paper

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Question : 27

Total: 70

If the distance between two places on a map is 2cm, while the distance on land is 4km, the scale of the map is

1:100,000
1:200,000
1:50,000
1:150,000

Solution:

Concept:

Map scale is the ratio of distance on the map to actual ground distance in the same units.

Explanation:

Convert

4

km to cm:

4 \text{ km} = 4 \times 100000 = 400000

cm.

Scale ratio = map distance : ground distance =

2 : 400000

.

Divide both sides by

2

:

1 : 200000

.

Answer:

B.

1:200,000

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