1.
If the volume and surface area of a sphere is numerically the same then it’s radius is_________?

2.
A right cylinder and a right circular cone have the same radius and the same volume. The ratio of the height of the cylinder to that of the cone is_________?

3.
The radius of a circular cylinder is the same as that of a sphere. Their volumes are equal. The height of the cylinder is________?

4.
The number of solid spheres each of diameter 6 cm, that could be moulded to form a solid metal cylinder of height 45 cm and diameter 4 cm is?

5.
The length of the wire of 0.2mm radius that can be drawn after melting a solid copper sphere of diameter 18cm?

6.
The radius of a wire is decreased to one –third if volume remains the same length will increase

7.
If the volumes of two cubes are in the ratio 8: 1, the ratio of their edges is_________?

8.
A metal sheet 27 cm long 8cm broad and 1 cm thick is melted into a cube. The difference between the surface areas of two solids is__________?

9.
A wooden box of dimensions 8m x 7m x 6m is to carry rectangular boxes of dimensions 8cm x 7cm x 6cm. The maximum number of boxes that can be carried in 1 wooden box is?

10.
If the length, breadth and the height of a cuboid are in the ratio 6: 5: 4 and if the total surface area is 33300 cm2, then length breadth and height in cms, are respectively?