<PRE><B>Question 928258</B>
 I am trying to work out where in a pipe it is blocked.
 The pipe is 4 cm in diameter and takes 3 litres of water before it over flows.
 How far along the pipe do I need to look?
:
We know 1 liter = 1000 cu/cm
:
let L = length of pipe that holds 3000 cu/cm
{{{pi*2^2*L = 3000}}}
L = {{{3000/12.5666}}}
L = 238.74 cm about 2 meters 39 cm</PRE>