How deep is the pool if there are 2025 hectoliters of water and the bottom dimensions are a = 15 meters b = 7,5 meters and the water level is up to 9/10 (nine-tenths) of height.

Correct result:

h =  2 m


V=2025 hl m3=2025/10  m3=202.5 m3 a=15 m b=7.5 m S=a b=15 7.5=2252=112.5 m2  c=V/S=202.5/112.5=95=1.8 m c=910h  h=109 c=109 1.8=2 m

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