I can't remember the exact question, but it was along the lines of
5mm of rain fell onto a 216m^2 roof. The water was then funnelled into a cylindrical tank that had a diameter of 3.6m.
What was the increase in height of the cylindrical tank.
Any advice on how to write a good intro??
Also my teacher always said to "link back to question", but I'm struggling on how to have a strong link, I was never shown properly.