The external deameter of a hollow gold-sphere is 12 cm and it is made of a plate of thickness 1cm. If the mass of 1cc gold be 19.5 gm and the price of 1 gm gold be ₹ 1280, then what is the price of the whole solid sphere?

The external diameter of a gold - sphere is 12 cm and it is made of a gold - plate of thichness 1 cm. If the weight of 1 cc gold be 19*5 gm and the price of 1 gm gold is ₹ 1280, then find the total price of the gold - sphere.

If the external dimeter of a hollow iron-sphere be 12cm and the thickness of it be 3cm , then what will be the volume of the sphere?

The external diameter of the forepart of a bowl made of a copper plate of thickness 1 cm is 12 cm.If the weight of 1cc of copper be 12gm, then what will be the weight of the bowl ?

The external radius of a hollow sphere of thickness 1 cm, made of lead - plate is 6 cm If a solid right circular rod of radius 2 cm is made by melting this hollow sphere , then what will be the length of the rod ?

The external and interenal diameter of a hollow metal spheres are 12cm and 10cm respectively. If the density of the metal be 4.9 gm/cc, then find the mass of the hollow sphere.

A hollow sphere of external radius 5 cm and of same thickness is made by melting a solid sphere of radius 4cm , then what will be the thickness of the hollow sphere

The external radius of a hollow sphere made of lead sheet of 1 cm thickness in 6cm.. If melting the sphere, a solid circular rod of 2cm radius is made, then find the length of the rod.

If a circular iron-plate of thickness (1)/(150) cm is made from an iron-sphere of diameter 1 cm , then what will be the radius of the circular plate gt?

The mass of a hollow iron-sphere of external radius 21cm is 22775(5)/(21) gms. If the weight of 1 cc iron be 10 gms , then what will be the thickness of the sphere ?

Two solid sphere of radii 3 cm and 4 cm are melted to make a hollow sphere of external radius of 6 cm, then wahat will be the thickness of the new hollow sphere?