# Two municipalities

The horizontal distance between municipalities is 39 km. Average sinking is 7 per mille. What is the difference in height between these municipalities?

Result

x =  273 m

#### Solution:

$a = 39 \ km = 39 \cdot \ 1000 \ m = 39000 \ m \ \\ k = \dfrac{ 7 }{ 1000 } = 0.007 \ \\ \ \\ x = a \cdot \ k = 39000 \cdot \ 0.007 = 273 = 273 \ \text{ m }$

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