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Mathematics for IGCSE & O level - Scale Drawings (Section 3 - No. 1)

A map uses the scale 2 cm to 5 km. How many km is represented by 6 cm on the map?
10 km
15 km
20 km
25 km

解释

6 cm is three times 2 cm, so it represents 3 * 5 = 15 km.

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