Related InterviewSolutions

• A hemispherical tank is made up of an iron sheet 1 cmthick. If the inner radius is 1 m,then find the volume of the iron used to make the tank
• The diameters of three solid balls of iron are 6 cm, 8 cm and 10 cm. They are melted and recast a solid ball. Find the diameter of this ball.
• The radius and height of a right circular cone are 4 cm and 9 cm respectively. Its volume will be : (i) `36pi cm^(3)` (ii) `48pi cm^(3)` (iii) `72pi cm^(3)` (iv) `100pi cm^(3)`
• The length, breadth and height of a cuboid are in the ratio 6 : 5 : 3. If its total surface area is `504 cm^(2)`, find its dimensions. Also find the volume of the cuboid.
• Find the volume and total surface area of a cuboid, whose length = 15 cm, breadth = 10 cm and height = 8 cm.
• A semi-circular sheet of metal of diameter 28cm isbent into an open conical cup. Find the depth and capacity of cup.
• An open conical cup is formed from a thin metallic semi-circular sheet of diameter 28 cm. Find its volume.
• The diameter of a roller is 84 cm and its length is 120 cm. It takes 500 completerevolutions to move once over to level a playground. Find the area of the playgroundin `m^2`.
• How manyballs, each of radius 1 cm, can be made from a solid sphere of lead of radius8 cm?
• Tow solid spheres made of the same metal have weight 5920 g and 740 g, resopectively. Determine the radius of the radius of the larger sphere, if the diameter of the smaller one is 5 cm.