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A closed cylindrical tank of diameter 7 metres has a total surface area of 110m2. The tank which is initially one – third of water is filled by a pump which pumps water at the rate of 2.5 litres per second.
a) Taking #pi# = #22/7#, determine
i. The height of the tank.
ii. The volume of water required to fill the tank in litres.
iii. The time in hours and minutes, to the nearest minute, it takes to fill the tank.
b) Starting with the full tank, a school uses water from this tank at the rate of 2 400 litres per day.
Find how many complete days it takes to use all the water from the tank assuming that no more water is added.