Water flows at the rate of $10\;m$ per minute through a cylindrical pipe having its diameter as $5\;mm$. How much time will it take to fill a conical vessel whose diameter of base is $40\;cm$ and depth $24\;cm$?

Question

$\begin{array}{1 1} 51\;min\;and\;12\;sec \\ 41\;min\;and\;2\;sec \\ 21\;min\;and\;21\;sec \\ 30\;min\;and\;12\;sec \end{array} $