A container opened from the top is in the form of a frustrum of a cone of height 16cm with radii of its lower and upper ends 8cm and 20cm respectively. find the cost of the milkwhich can completely fill the container at the rate of Rs. 20 per litre.[Take `pie= 3.14`]

A container , openedfrom the top and made up of a metal sheet, is in the from of a frustum of a cone of height 16 cm with radii of its lower and upper ends as 8 cm and 20 cm respectively . Find the total cost of milk which can completely fill the container at the rate of Rs 20 per liter . Also find the cost of metal sheet used to make the conatainer, if it costs Rs 8 per 100 cm^(2)

A bucket is in the form of a frustum of cone and holds 28.490 litres of water. The radii of top and bottom are 28 cm and 21 cm respectively. Find the height of the bucket.

A bucket of height 8 cm and made up of a copper sheet is in the form of frustum of a right circular cone with radii of its upper and lower ends being 3 cm and 9 cm respectively. Calculate. A] The height of the cone of which the bucket is a part. B] Volume of water which can be filled in the bucket C] The area of copper sheet required to make the bucket.

A container in the shape of a frusum 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 cm^(3) of oil weighs 1.2g, find the cost of oil in the container at the rate Rs 40/kg.

A flower vase is in the from of a frustum of a cone. The perimeter of the ends are 44 cm and 8.4 pi cm . If the depth is 14 cm, find how much water it can hold .

A glass in the form of a frustum of cone has capacity of 104picm^(3) . Its height is 8 cm and one of the radii is 2 cm. determine the diamter of the other circular part.

A cylindrical pilar is 50 cm in diameter and 3.5 m in height. Find the cost of painting the curved surface of the pillar at the rate of Rs 12.50 per m^(2).

The radii of the circular ends of the frustrum of height -6cm are 14 cm and 6cm respectively. Find the lateral surface area and total surface area of frustrum.

The bottom of a right cylindrical shaped vessel made from metallic sheet is closed by a cone shaped vessel as shown in the figure . The radius of the circular base of the cylinder and radius of the circular base of the cone each os equal to 7 cm . If the height of the cylinder is 20 cm and height of cone is 3 cm calculate the cost of milk to fill completely this vessel at the rate of Rs. 20 per litre.