A cylindrical container of 32 cm height and 18 cm radius is filled with sand. Now all this sand is used to form a conical heap of sand. If the height of the conical heap is 24 cm, what is the radius of its base? 

Area of a equilateral triangle is 400√3 sq.m. then perimeter is-

Diagonal of a given square is 4√2 cm. What is the diagonal of the other square whose area is double of the given square?

The radius of a wire is decreased to one third. If volume remains the same, length will increase by :

The ratio of the volume of a cube to that of a sphere which will fit inside the cube is

The ratio of the side and height of an equilateral triangle is –

The number of coins of radius 0.75 cm and thickness 0.2cm required to be melted to make a right circular cylinder of height 8 cm and base radius 3 cm is:

How many hemispherical balls can be made from a cylinder 56 cm high and 12 cm diameter, when every ball being 0.75 cm in radius?