A ball of diameter 4 cm is kept on top of a hollow cylinder standing v – McqOptions

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1.	A ball of diameter 4 cm is kept on top of a hollow cylinder standing vertically. The height of the cylinder is 3 cm, while its volume is 9 π cm3 . Then the vertical distance, in cm, of the topmost point of the ball from the base of the cylinder is
A.	6
B.	8
C.	10
D.	12
Answer» B. 8

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