Question

A one side open cylindrical drum has inner radius $28$ cm and height $2.1$ m. How much water can be stored in the drum? Express in litres. ($1$ litre $=1000$ cc)

• A. $517.44$ litres
• B. $5100$ litres
• C. $5259$ litres
• D. None of the above

Answer 1

The correct option is A $517.44$ litres

Given, the radius of open cylindrical drum is $28$ cm and height is $2.1$ m

Then radius $=28$ cm

And height $=2.1$ m $=210$ cm

Then volume of open cylindrical drum $=$ $\pi r^{2}h=\frac{22}{7}\times (28{)}^2\times 210$

$=$ $22\times 28\times 4\times 210=517440c{m}^3$ $(1000$ cc $=1$ litres $)$

Then stored of water in tank $=$ $\frac{517440}{1000}=517.44$ litres