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1. |
Suresh wanted to keep volume of his right circular cone shaped cap same, but increase its height to 9 times. By how much should he increase or decrease the radius? |
A. | Increase to 3 times |
B. | Reduce to 1/3rd |
C. | Increase by 18 times |
D. | Reduce to 1/9th |
Answer» C. Increase by 18 times | |