The amount of water that the given cylinder can hold can be found out by calculating its volume .
Find the volume of hollow part and external part first and then take away.
Try to find out the curved surface area as excluding the bases.
Try to find the total surface area as the vessel is closed.
Put the values of the radius and height in the formula.
First find out the area covered in one revolution.
First find out the value of radius and then find the curved surface area and total surface area .
Start with calculating the height of the cylidrical tank first by relating it with the given total surface area .
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