How much oil is there in all the containers, if each container has 325 mL oil in it?
A container in the shape of a frustum of a cone having diameters of its two circular faces as 35 cm and 30 cm and vertical height 14 cm, is completely filled with oil. If each cm3 of oil has mass 1.2 g then find the cost of oil in the container if it costs Rs 40 per kg.