River
Calculate how many permille river Dunaj average falls, if on section long 957 km flowing water from 1454 m AMSL to 101 m AMSL.
Correct answer:
![](/img/26/kongo_river.jpg)
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Try conversion angle units angle degrees, minutes, seconds, radians, grads.
You need to know the following knowledge to solve this word math problem:
- planimetrics
- right triangle
- triangle
- basic functions
- ratio
- percentages
- per mil
- numbers
- fractions
- rational numbers
Units of physical quantities:
Grade of the word problem:
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