railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Mensuration Solid Figures
The sum of the radius of the base and the height of a closed solid cylinder is 12.5 cm. If the total surface area of the cylinder is 275 cm2, then its radius is: \(\rm \left(Take \space\pi = \frac{22}{7}\right)\)
1
7 cm
2
3 cm
3
5 cm
4
3.5 cm