4. (3.0 pts) The cumulative volume of water consumption of a residential town that
has 90,000 is presented below. An elevated water tank is to be built so that water is
pumped from a water treatment plant at a constant rate to the tank and is then
transferred by gravity to the residents.
8642Cummulative flow, million gallon00 4 8 12 16 20 24Time, hr
a. (2.0 pts) What is the design capacity of the storage tank?
b. (0.5 pts) What is the pumping rate from the water treatment plant into the tank?
c. (0.5 pts) Based on the given data, what is the average daily per capita water
consumption in the town?
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