22 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 choices.
A) 84 m
B) 28 m
C) 120 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 = 22 ⇔ = [22 * 20 * 20 * 7 / 22= 
<gadget id="calculator">22 * 20 * 20 * 7 / 22</gadget>
<output>2_800</output>
2800cm= 28 m.   Answer 28 m
<result>B</result>
22 cubic centimetres of silver is drawn into a wire 1 mm in diameter. The length of the wire in metres will be :