A storage tank consists of a circular cylinder with a hemisphere stuck on either end. If the external diameter of the cylinder be 1.4 m. and its length be 8 m. Find the cost of painting it on the outside at rate of Rs. 20 per `m^(2)`.

The inner diameter of a circular well is 3.5 m. It is 10 m deep. Find The cost of plastering this curved surface at the rate of Rs. 40 per m^(2) .

Find the cost of fencing a square park of side 250 m at the rate of Rs. 20 per meter.

All oil drum is in the shape of a cylinder with two hemi-spheres stuck to each of its ends. The length of the drum is 5 m and the width is 1 m. Find its surface area.

A medicine capsule is in the shape of a cylinder with two hemispheres stuck to each of its ends. The length of the capsule is 14 mm. and the width is 5 mm. Find its surface area.

A solid is composed of a cylinder with hemi-spherical ends. If the whole length of the solid is 104 cm and the radius of each of the hemi-spherical ends is 7 cm, find the cost of polishing its surface at the rate of Rs. 10 per cm^2

The length and breadth of a rectangular field are 22.5 m and 14.5 m respectively. Find the cost of fencing its four sides at the rate of Rs. 6 perimeter.

A medicine capsule is in the shape of a cylinder with two hemispheres stock to each of its ends. If the length of cylinder part is 14mm and the diameter of hemisphere is 6 mm. then find the volume of medicine capsule.

A path 5m wide runs around a square park of side 100m find the area of the path. Also find the cost of cementing it at the rates of ₹250 per 10m^2 .

The hemispherical dome of a building needs to be painted (see fig 1). If the circumference of the base of dome is 17.6 m, find the cost of painting it, given the cost of painting is Rs.5 per 100 cm^(2) .

tent is in the form of a cylinder surmounted by a cone having its diameter of the base equal to 24 m. The height of cylinder is 11 m and the vertex of the cone is 5m above the cylinder. Find the cost of making the tent, if the rate of canvas is Rs. 10 per m^(2)