66 cubic centimetres of silver is drawn into a wire 1 mm in diameter. The length of the wire in metres will be :	Answers:
A) 84 m B) 88 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 = 66 ⇔ = [66 * 20 * 20 * 7 / 22= 
<gadget id="calculator">66 * 20 * 20 * 7 / 22</gadget>
<output>8_400</output>
8400cm= 84 m.   84 mnswer 84 m
<result>A</result>
66 cubic centimetres of silver is drawn into a wire 1 mm in diameter. The length of the wire in metres will be :