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The scale of the map, if actual size is 120 km, drawing size is 12 cm.

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1km : 10cm

10cm : 10km

10cm : 1km

1cm : 10km

answer is D.

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Detailed Solution

Given, actual size is 120 km and drawing size is 12 cm.
We know that scale is the ratio of the dimensions of the design or model to the actual dimensions i.e.,

Scale of map = Size Drawn Actual Size

.
So, the scale of map is

Scale of map = Size Drawn Actual Size

⇒ Scale of map = 12 cm 120 km

⇒

Scale of map = 1 cm : 10 km
So, the correct option is (4).

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