A cylindrical water tank of diameter 1.4 m and 2.1 m is being fed by a pipe of diameter 3.5 cm through which water flows at the rate of 2 m/s in how much time will the be filled
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A cylindrical water tank of diameter 1.4 m and height 2.1 m is being fed by a pipe of diameter 3.5 cm through which water flows at the rate of 2 metre per second. In how much time the tank will be filled?
We have,
- Diameter of cylindrical tank = 1.4 m
- Radius of tank = d/2 = 1.4/2 = 0.7m
- Height of tank = 2.1 m
Diameter of pipe flowing water in tank = 3.5 cm
- Radius of pipe = d/2 = 3.5/2 cm
- Rate of flow of water = 2 m/s
Time taken to fill the tank = volume of tank / volume of pipe × rate of flow
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∴ Time taken to fill the tank is 28minutes.
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Some Formula of Cylinder
Curved surface Area of cylinder = 2πrh.
- → Base Area of cylinder = πr²
- → Both Side base Area of cylinder = 2(πr²)
- → Total Surface Area of cylinder = curvedsurface Area + both side base Area = 2πrh + 2πr² = 2πr (h+r)..
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