1.

The capacities of two hemispherical vessels are 6.4 litres and 21.6 litres. The areas of inner curved surfaces of the vessels will be in the ratio of :

A. $\sqrt 2 $$ : $$\sqrt 3 $$
B. : 3
C. : 9
D. 6 : 81
Answer» D. 6 : 81


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