33 cubic centimetres of silver is drawn into a wire 1 mm in diameter. The length of the wire in metres will be :
Choose the correct choice from the following options:
A) 84 m
B) 88 m
C) 42 m
D) 137 m
E) None
Sol.   Let the length of the wire b h.   Radius = 1/2 mm = 1/20 cm. Then,   22/7 * 1/20 * 1/20 * h = 33 ⇔ = [33 * 20 * 20 * 7 / 22= 
<gadget id="calculator">33 * 20 * 20 * 7 / 22</gadget>
<output>4_200</output>
4200cm= 42 m.   Answer 42 m
<result>C</result>
33 cubic centimetres of silver is drawn into a wire 1 mm in diameter. The length of the wire in metres will be :