How many cubic meters of soil shall be taken out while digging a well of depth of 22.5m and diameter 7m.?Also find the total cost of cementing the curved surface inside the well at the cost of Rs.20 per square metre.

A tent 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 4 m respectively and the slant height of the top is 2.8 m, find the area of the convas for making the tent. Find the cost of convas of the tent at the rate of ₹ 500 per square meter.

A tent is in form of a cylinder of diameter 4.2 m and height 4 m surmounted by a cone of equal base and height 2.8 m. Find the capacity of the tent and the cost of canvas making the tent at ₹ 100 per square meter.

A tent is in the shape of a cylinder surmounted by a conical top.If the height and diameter of the cylindrical part are 2.1m and 4 m respectively,and the slant height of the top is 2.8 m,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 will not be covered with canvas).

There is an agriculture field in the form of rectangle of length of 20 m and width 14 m. A 10 m deep well of diameter 7 cm is dug in a corner of the field and the earth taken out of the well is spread evenly over the remaining part of the field. Find the rise in its level.

A 20m deep well with diameter 7m is dug and the earth from digging is evenly spread out to from a platform 22m by 14m.Find the height of the platform.

A 20 m deep well with diameter 7 m is dug and the earth from digging is evenly spread out to form a platform 22 m by 14 m. Find the height of the platform.

A well whose diameter is 7 m, has been dug 22.5 m deep and the earth dug out is used to form an embankment 10.5 m wide around it. Find the height of the embankment.

A well of diameter 3 m is dug 14 m deep.They earth taken out of it has been spread evenly all around it to a width of 4 m to from an embankment. Find the height of the embankment (Use... pi=22/7 ).