A well of diameter 14 m is dug 15 m deep. The earth taken out of it has been spread evenly to form circular embankment all around the wall of width 7 m. Find the height of the embankment.

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

A 20m deep well with distance 7m 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.

An overhead water tanker is in the shape of a cylinder has capacity of 61.6 cu.mts. The diameter of the tank is 5.6 m. Find the height of the tank.

Walls of two buildings on either side of a street are parallel to each othar. A ladder 5.8 m long is placed on the street such that its top just reaches the window of a building at the height if 4 m. On turning the ladder over to the other side of the street, its top touches the window of the other building at a heitht 4.2 m. Find the width of the street.

A tunnel is dug along a diameter of the earth. Find the force on a particle of mass m placed in the tunnel at a distance x from the centre.

Find (i) The total surface area of a closed cylindrical petrol storage tank whose diameter 4.2 m. and height 4.5 m.

Find out the workdone required to extract water from the well of depth 20 m. Weight of water and backet is 2.8 kg wt

A tent is made in the form of a conic frustum surmounted by a cone . The diameter of the base and the top of the frustum are 20 m and 6m respectively and the height is 24 m . If the height of the tent is 28 m , find the quantity of canvas required ( Give your answer in pi ) .

A boy standing at point O finds his kite flying at a point P with distance OP = 25m. It is at a height of 5m from the ground . When the thread is extended by 10 m from P, it reaches a point Q. What will be the height QN of the kite from the ground? (use trigonometric ratios)