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How many liters of water will be needed to three-fourths filled 30 cm diameter cylindrical tank that is 1.51 m tall if the density of water is 1.0 g-ml?
A diameter of 30cm gives a radius of 15cm.
The volume of a cylinder is {pi} x radius2 x height
The volume required to fill to three quarters full is:
volume = {pi} x (15cm)2 x 151cm x 3/4
~= 80052cm3.
1 l = 1000cm3
=> volume ~= 80.052 l
So a little over 80 liters of water will be required, regardless of its density which will play a role in working out how much the 80+ liters of water will weigh (and thus whether the container is strong enough to actually contain it).
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