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A cylindrical water tank of diameter 4m and height 3.5 m is filled completely with water. a tap attached to the tank empties the tank at the rate of 2 litres bper minute. in how many minutes will the tank be empty |
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Answer» Answer: Step-by-step explanation: First we find the volume of tank. SINCE the tank is the FORM of cylindrical form . Diameter = 4m So radius = 2m Height = 3.5m Volume of tank = πr²h = 22/7x (2)²x3.5 = 22x4x0.5 = 44m³= 44000litre Now since the tap empeties the tank at the RATE of 2 litre per MINUTE the tap empties the tank at the rate of 1 litre =1/2 minute So, the tap 44000 litre water empeties to tank = 44000x½ = 22000minute |
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