Question

A cylindrical tank has base radius $7$ m and height $9$ m. If $\frac{2}{3}$ of the tank is filled with water find the volume of water In the tank. [ Use $\pi =\frac{22}{7}$]

• A. $1386$ cu m
• B. $462$ cu m
• C. $824$ cu m
• D. $924$ cu m

Answer 1

The correct option is D $924$ cu m

Volume of a Cylinder of Radius "R" and height "h" $=\pi r^{2}h$

Hence, volume of the given cylinder $=\frac{22}{7}\times 7\times 7\times 9=22\times 7\times 9{cm}^3$

GIven, $\frac{2}{3}$ of the tank is filled with water.

=> Volume of water in the tank, $=\frac{2}{3}\times 22\times 7\times 9=924{cm}^3$