12th Class
Mathematics
Sample Paper
Maths Olympiad Model Paper-1
question_answer
There is circular plot of land of diameter 24 metres. At the centre of the plot, a pit in the form of a frustum of a cone is dug up. The depth of the pit is 3 meters. The diameters of the top and the bottom of the pit are 4 metres and 2 metres respectively. The earth dug out from the pit is spread uniformly over the remaining area of the plot. Find the height to which the level of the plot rises.