A toy is in the form of a cone mounted on a hemisphere of diameter 7 cm. The total height of the toy is 14.5 cm. Then the volume of the toy is (π=22/7):

A solid is a cone mounted on a hemisphere. Radius=6 cm and total height=14 cm. Surface area?

A solid sphere of radius 3 cm is melted to form a hollow cylinder of height 4 cm and external diameter 10 cm. What is the thickness of the cylinder?

What is the time taken by a person to cover one round of a circular park of diameter 210 m if he walks at a speed of 6 km/hr? (Take π = 22/7)

The circumference of a circle exceeds the diameter by 16.8 cm. What is the diameter of the circle? (Take π = 22/7)

The radius of a solid sphere of some metal is 3 cm. How long a wire of diameter 4 mm can be drawn from it?