A plastic box 1.5 m long, 1.25 m wide and 65 cm deep is to be made. It is opened at the top. Ignoring the thickness of the plastic sheet, determine : The cost of sheet for it, if a sheet measuring `1m^(2)` costs Rs 20.
A plastic box 1.5 m long, 1.25 m wide and 65 cm deep is to be made. It is opened at the top. Ignoring the thickness of the plastic sheet, determine : The area of the sheet required for making the box.
A plastic box 1.5m long, 1.25m wide and 65 cm deep is to be made. It is opened at the top.Ignorian the thickness of the plastic sheet, determine: (i) The area of the sheet required for making the box. (ii) The cost of sheet for it, if a sheet measureing 1m^(2) costs Rs 20.
A circular pond is 17.5 m in diameter It is surrounded by a path 2m wide. Find the cost of constructing the path Rs 25 per m^2
A cuboidal water tank is 6 m long, 5 m wide and 4.5 m deep. How many litres of water can it hold ? (1m^(3)=1000l)
A conical tent is 10 m high and the radius of its base is 24 m. Find (i) slant height of the tent. (ii) cost of the canvas required to make the tent, if the cost of 1m^(2) canvas is Rs 70.
A cloth 5 m wide is used to make a conical tent of base diameter 14 m and height 24m. Find the cost of cloth at the rate Rs 25 per metre.
A conical tent is 10 m high and the radius of its base is 24 m. Find cost of the canvas requiered to make the tent, if the cost of 1m^(2) canvas is Rs 70.
A vertical stick 1 m long casts a shadow 80 cm long. At the same time a tower casts a shadow 30 m long. Determine the height of the tower.
A rent is in the shape of a cylinder surmounted by a conical top. If the height and diameter of the cylindrical part are 2.1 m and 4m respectively , and the slant height of the top is 2.8m, find the area of the canvas used for making the tent. Also. find the cost of the canvas of the tent at the rate of Rs 500 "per"m^(2) ( Note that the base of the tent will not be covered with canvas. )
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).
SUBHASH PUBLICATION-SURFACE AREAS AND VOLUMES-EXERCISE 13.9