Question

a hollow cylinder has solid hemisphere inward at one end and on the other end
It is close with the flat circular plate. The height of Tower is 10 cm when flat circular surface is downward. find the level of water when it is inverted upside down common diameter is 7 cm and height of the cylinder is 20 CM

Answer 1

Hlo friend 
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Here is ur answer :
Please see the attached picture.. 

3h' - 7 = 5 ×2×3
3h' -7 = 30
3h' = 30+7
3h' =37
h' = 37/3
h' = 12.3 cm

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