Question : The curved surface area of a solid cylinder of height 15 cm is 660 cm2. What is the volume (in cm3) of the cylinder? $\left(\right.$ Take $\left.\pi=\frac{22}{7}\right)$
Option 1: 2060
Option 2: 2540
Option 3: 2310
Option 4: 3210
Correct Answer: 2310
Solution : Let the radius of the cylinder be $r$. Given, the height of the cylinder, $h$ = 15 cm Curved surface area = $2\pi rh = 660\ \text{cm}^2$ $⇒r = \frac{660\times 7}{22 \times h\times 2}$ $⇒r = \frac{4620}{44 \times 15}$ $\therefore r = 7\ \text{cm}$ Now, Volume of the cylinder is $=\pi r^2h=\frac{22}{7}\times7\times7\times15= 2310\ \text{cm}^3$ Hence, the correct answer is 2310 cm 3 .
Result | Eligibility | Application | Selection Process | Cutoff | Admit Card | Preparation Tips
Question : The total surface area of a right circular cylinder is 1848 cm2. The ratio of its total surface area to the curved surface area is 3 : 1. The volume of the cylinder is: (Take $\pi=\frac{22}{7}$)
Question : What is the total surface area of a solid right circular cylinder of radius 7 cm and height 8 cm?$(\pi=\frac{22}{7})$
Question : The radius of the base of a cylinder is 14 cm and its volume is 6160 cm3. The curved surface area (in cm2) is: (Take $\pi=\frac{22}{7}$)
Question : The height of a cylinder is $\frac{2}{3}$rd of its diameter. Its volume is equal to the volume of a sphere whose radius is 4 cm. What is the curved surface area (in cm2) of the cylinder?
Question : The ratio of the radius of the base and the height of a solid right circular cylinder is 2 : 3. If its volume is 202.125 cm3, then its total surface area is: (Take $\pi=\frac{22}{7}$)
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile