A patient in a hospital is given soup daily in a cylindrical bowl of diameter 7 cm. If the bowl is filled with soup to a height of 4 cm, how much soup the hospital has to prepare daily to serve 250 patients?

If the lateral surface of a cylinder is 9.42 cm2 and its height is 5 cm, find :

(i) radius of its base

(ii) volume of the cylinder [Use π = 3.14]

The capacity of a closed cylindrical vessel of height 1 m is 15.4 litres. How many square metres of metal sheet would be needed to make it?

A hollow garden roller 63 cm wide with a girth of 440 cm, is made of 4 cm thick iron. Find the volume of the iron.

A solid cylinder has a total surface area of 231 cm². Its curved surface area is of the total surface area. Find the volume of the cylinder.