15. A hollow cylinder has solid hemisphereinward at one end and on the – InterviewSolution

1.	15. A hollow cylinder has solid hemisphereinward at one end and on the other end itis closed with a flat circular plate. The heightof water is 10 cm when flat circularsurface is downward. Find the level of water,when it is inverted upside down, commondiameter is 7 cm and height of the cylinder is0 cm.
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