EF, E and V are respectively the number of faces, edges and vertices of a polyhedron. Then, which of the following is true ?

The surface area of a cube is 480 $$cm^2$$​ Find its volume.

Water flows out through a pipe, whose internal radius is 3 cm, at the rate of x cm per second into a cylindrical tank, the radius of whose base is 60 cm. If the level of water in the tank rises by 15 cm in 5 minutes, then the value of x is:

The curved surface area of a solid metallic right circular cylinder is 1792π cm² and its base radius is 32 cm. It is melted and recast into 42 solid spherical balls of equal radius. What is the surface area (in cm²) of a ball ?

A cubical tank with side 50 cm is full of water. If 61 litres of water is taken out of it, the level of water in the tank will drop by:

The cost of polishing the total surface area of a solid cone at ₹ 0.50 per cm² is ₹ 5632, and the circumference of its base is 176 cm. What is the height of the cone? (Use π = 22/7)

Box A measures 20 cm by 5 cm by 4 cm and box B measures 16 cm by 5 cm by 3 cm. Based on this information, which one of the following statements is correct ?

Which of the following statements is wrong ?

A cuboid whose sides are 8 cm,9 cm and 24 cm is melted to form a new cube. What is the respective ratio of the total surface area of the cuboid and cube?

Box A measures 20 cm by 5 cm by 4 cm and box B measures 16 cm by 5 cm by 3 cm. Which one of the following statements is correct?

The amount of milk which can be stored in a cube of edge 2 m is