# Railway

Between points A, B, whose horizontal distance is 1.5 km railway line has 8promile climb. Between points B, C with horizontal distance of 900 m is climb 14promile. Calculate differences of altitudes between points A and C.

Result

x =  24.6 m

#### Solution:

$x=1500 \cdot \ 8/1000 + 900 \cdot \ 14/1000 = \dfrac{ 123 }{ 5 } = 24.6 \ \text{ m }$

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