Raise in water level problems : A cylind...

Raise in water level problems : A cylinderical tub of radius 12 cm contains water to a depth of 20cm. A spherical form ball of a radius 9 cm is dropped into the tub and thus the level of water is raised by H cm. What is the value of H?

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A cylindrical tub of radius 12 cm contains water to a depth of 20 cm. A spherial iron ball is dropped into the tub and thus the level of water is raised by 6.75 cm. What is the radius of the ball?

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