The scale

The distance of 15 cm on the map corresponds to 27 km in reality. What is the scale of the map?

Correct answer:

M =  1:180000

Step-by-step explanation:

a=27 km m=27 1000  m=27000 m b=15 cm m=15:100  m=0.15 m  M=b/a=0.15/270000=1:180000

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