Road - permille

A 5 km long road begins at an altitude 500 meters above sea level and ends at an altitude of 521 ASL. How many permille road rises?

Correct answer:

p =  4.2

Step-by-step explanation:

y=521500=21 m x=5 km m=5 1000  m=5000 m  p=1000 xy=1000 500021=50001000 21=500021000=521 =4.2 

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