Radius of hemisphere is thrice than that of a sphere. What i

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Radius of hemisphere is thrice than that of a sphere. What is the ratio of total surface area of hemisphere to that of sphere?

[SSC CPO 4 July 2017 Afternoon Shift With Answers]

A 27 : 8

B 21 : 4,

C 27 : 4,

D 6 : 1,