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1. |
If the volume of two cones are in the ratio 1 : 4 and their diameters are in the ratio 4 : 5, respectively, then the ratio of their heights is: |
A. | 25 : 64 |
B. | 5 : 8 |
C. | 1 : 5 |
D. | 5 : 16 |
Answer» B. 5 : 8 | |