Book Maths Puzzle

the external radius and the thickness of a metallic sperical shell is 6 cm and 2 mm respectively. The shell is melted and drawn into a wire of diameter 1 cm of the wire is sold at Rs 5 then find the price that the so made will fetch

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In the question it is not mentioned,Rs 5 is price per cm or mm or total price
Volume of metal of sphere =(4/3)*Pi*2^3=Pi*32/3 mm^3=Volume of wire=Pi*r^2*h
Pi*r^2*h=Pi*25*h=Pi*32/3 or h=length=32/75 mm
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