Question

A tracker has a roller on the front that is filled with water to make it heavy. The tank of water in the roller has a diameter of $14$ m and a length of $20$ m. Find the volume of water in the roller. (Use $\pi =\frac{22}{7}$).

• A. $1080$ cu. m
• B. $2080$ cu. m
• C. $3080$ cu. m
• D. $4080$ cu. m

Answer 1

The correct option is C $3080$ cu. m

Diameter $=$ radius $\times 2$
Therefore, radius $=7$ m
Volume of water $=$ area of circle $\times$ length
Volume $=$ $\pi r^2\times l$
$=$ $\frac{22}{7}\times 7^2\times 20$
$=3080$ cu. m