Gradient of the railway

Calculate the gradient of the railway line, which has an elevation of 22.5 meters in a section of 1.5 kilometers. For railways, the result is given in h (per mille).

Final Answer:

h =  15 ‰

Step-by-step explanation:

$$\begin{gathered} c=1.5\text{km}\to \text{m}=1.5\cdot 1000\text{m}=1500\text{m} \\ b=22.5\text{m} \\ h=1000\cdot \frac{b}{c}=1000\cdot \frac{22.5}{1500}=15‰ \end{gathered}$$

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