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Two places on a map have the scale of 1:3 000 000 (read: one to three million) three centimetres apart. How many kilometres are these two places truly apart?
To figure this out, we need to know what the scale in the form 1:3 000 000 means. This means that 1 cm on the map are 3 000 000 cm in reality. 3 000 000 cm are 30 kilometres. 1 cm à 30 km | · 3 3 cm à 90 km In words: If 1 cm is 30 km, then 3 times that amount is 90 km in reality. Answer: The places lie 90 km apart.
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