.
in a certain community with a population of 45000 it is estimated that each person needa
12 liter of water each day the community has a centralized reservoir which is cylindrical
with a radius of 7m and height 20m if the reservoir is half fulled how long to yhe nearest day
will the water last
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The volume of the cylindrical reservoir is
V = 
= 
= 3080 m^3, or 3,080,000 liters.
The volume of the water is half the volume of the cylindrical reservoir,
i.e. 3080000/2 = 1540000 liters.
The number of days is 
= 
= 2.85.
The nearest integer number of days is 3, but the amount of the water is not enough for 3 full days
at the given normative of 12 liters per person per day.
