need syep by step and proper hand written solition

Question : The process shown in figure is made constant volume electric water heater. On a particular day, as the tank temperature Beached the 80'c maurk, the heatert broke down and Stopped suppling heat. . At this time water was withdrawn from this idd liter Capacity tank at the rate of cold water automatically flowed into the of to liter/min; tank at precisely the same rate. This exercise and the water withdrawal stopped. on exactly for 5 min, Hence, water also stopped Howing in Develop an appropriate mathematical model for this process and show that it is reasonable consider this as first order process and by solving the resulting differential equation model, find the final tank temperature at the end of the 5-minute period. State all your assumption cos went cold to cold wat Ti T Hot water (need step by step and proper hand written Solution). po Heater 1934