# Arctangent + per mil - math problems

#### Number of problems found: 5 Road sign informs the gradient is 10.9%. Calculate the angle which average decreases.
• Height difference What height difference overcome if we pass road 1 km long with a pitch21 per mille? Between cities A and B is route 13 km long of stúpanie average 7‰. Calculate the height difference of cities A and B.
• Railway Railway line had on 5.8 km segment climb 9 permille. How many meters track ascent?
• Slope of track Calculate the average slope (in permille and even in degrees) of the rail tracks between Prievidza (309 m AMSL) and Nitrianske Pravno (354 m AMSL), if the track is 11 km long.

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