Question

4. A conical container is fully filled with petrol. The radius is 10m and the height is
15 m. If the container can release the petrol through its bottom at the rate of 25
cu.meter per minute, in how many minutes the container will be emptied. Round off
your answer to the nearest minute.​

Answer 1

4 minutyes

mark aas brainliest

Answer 2

Therefore the container will be emptied in 62.86 minutes.

Step-by-step explanation:

Given that, a conical container is fully filled with petrol.

The radius of the container is = 10 m

The height of the container is = 25 m.

The volume of the container is

$=\frac13 \pi r^2 h$

$=(\frac13 \pi \times 10^2 \times 15) \ cubic \ meter$

The container release petrol through its bottom at rate of 25 cubic meter per minute.

It means 25 cubic meter petrol releases in 1 minute.

The time to empty of the container is

$=\frac{\textrm{The volume of the container}}{\textrm{Rate of petrol release}}$

$=\frac{\frac13 \pi \times 10^2 \times 15 }{25}$

$=\frac{ 22 \times 10^2 \times 15 }{3\times7\times25}$

=62.86 minutes (approx)

Therefore the container will be emptied in 62.86 minutes.