Note: Assume reasonable values of missing data if any. Problem 1: (a). The population of a Al-Faisal City in 2006, 2011 and 2016 was recorded as 40,000; 95,000 and 160,000, respectively. Using the logistic method determine the expected population in 2021. (b). Statistical record at Al-Faisal Water Supply Station indicates that a total of 25,000,000m3 of water has been supplied during 2016 to meet the water demand of the population. Assuming the water demand per capita per day in 2021 is same as in 2016, estimate the followings (i). Average annual water demand in liter per capita per day (ii). Peak/maximum daily water demand in liter per capita per day (iii). Peak/maximum weekly water demand in liter per capita per day (iv). Peak/maximum monthly water demand in liter per capita per day (v). Peak/maximum hourly demand per in liter capita per day Hint: Apply Goodrich formula to estimate peak/maximum demands (c). Determine the capacity of the service reservoir to serve the population of Al-Faisal city. Take fire flow=25000L/min. Hint: Use population of 2021 in the calculations