Given: Height of cylindrical tank = H = 5 m
Diameter of cylindrical tank = d = 2 m
Radius of cylindrical tank = r = d/2 = 1 m
Volume of cylindrical tank = πr2H = π × (1)2 × 5 = 5π m3
Length of park = l =25 m
Breadth of park = b = 20 m
Let height of the park = h m
Volume of water in park = lbh = 25 × 20 × h = 500h m3
Now, volume of water in tank is equal to volume of water in the park.
∴ 5π = 500h
⇒ π = 100h
⇒ 3.14 = 100h
⇒ h = 0.0314 m
∴ Height of water in park = 0.0314 m
Recycling of water helps in conserving water resources and reduces wastage of water.
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