Q. 264.0( 4 Votes )
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Answer :
Volume of a sphere = (4/3)πr3
Volume of a cylinder = πr2h
Volume of water displaced = Volume of the iron ball
Given, cylindrical tub of radius 12 cm contains water to a depth of 20 cm. A spherical form ball is dropped into the tub and thus the level of water is raised by 6.75 cm
⇒ r3 = 729
⇒ r = 9 cm
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