A cylindrical vessel of height 7 cm and radius 5 cm is completely filled with sand. When this sand is poured out it forms a right circular cone of radius 8 cm what will be the height of this cone?
Study the graph and answer the following questions. The graph shows the number of bicycles parked in the parking space of a hall at various points of time.
What is the percentage decrease in the number of parked cycles between 7 pm and 8 pm? (in whole number)