

MCQOPTIONS
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1. |
The radii of two spheres are in the ratio 1 : 2 . The ratio of their surface areas is ? |
A. | 1 : 2 |
B. | 1 : 4 |
C. | 1 : |
D. | |
E. | 3 : 8 |
Answer» C. 1 : | |