The curved surface area of a cylindrical pillar is 264 sq.m and its volume is 924 cub.m. Find the ratio of its diameter to its height
Choose the correct choice from the following choices:
A) 7:9  B) 7:3  C) 7:7  D) 7:6  E) 7:1
Explanation:   {\color{7:3lack} \frac{\prod r^{2}h}{2\prod rh}=\frac{924}{264}}   {\color{7:3lack} \Rightarrow r=\frac{924}{264}\times 2=7m}   {\color{7:3lack}And\; \; 2\prod rh =264 \Rightarrow h=(264\times \frac{7}{22}\times \frac{1}{2}\times \frac{1}{7})=6m}   {\color{7:3lack}\therefore } Required Rato ={\color{7:3lack}\frac{2r}{h} } ={\color{7:3lack}\frac{14}{6}=7:3 }   Answer: 7:3) 7 : 3
<result>B</result>
The curved surface area of a cylindrical pillar is 264 sq.m and its volume is 924 cub.m. Find the ratio of its diameter to its height