The ratio of the volume of right circular cylinder and a right circular cone of the same base and height will be:

The heights of a cone, cylinder and hemisphere are equal. If their radii are in the ratio 2:3:1, then the ratio of their volumes is:

In the figure given below, AD bisects ∠BAC. If the area of ΔABD=40 cm² and AC=3AB, then the area of ΔABC:

The length, breadth and height of a room is 21 metres, 12 metres and 16 metres. What will be the length of the largest rod that can be placed in that room?

A solid sphere of diameter 17.5 cm is cut into two equal halves. What will be the increase (in cm²) in the total surface area?

The total surface area of a hemisphere is 166.32 sq cm, find its radius? 

What is total surface area of a cone where, r’ is radius and ‘l’ is slant height?   

A solid metallic cylinder of base radius 3 cm. and height 5 cm. is melted to form cones, each of height 1 cm. and base radius 1 mm. The number of cones is -