If the radius of a sphere is thrice of the radius of a hemisphere, the – McqOptions

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1.	If the radius of a sphere is thrice of the radius of a hemisphere, then what will be the respective ratio of their volumes?
A.	27 : 1
B.	54 : 1
C.	81 : 1
D.	9 : 1
Answer» C. 81 : 1

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