Question

66 cubic centimetres of silver is drawn into a wire 1 mm in diameter. The length of the wire in metres will be:


Options:
A .  84
B .  90
C .  168
D .  336
Answer: Option A

Let the length of the wire be h.

Radius = 1 mm = 1 cm. Then, 2 20

66 Cubic Centimetres Of Silver Is Drawn Into A Wire 1 Mm In... 22 x 1 x 1 x h = 66. 7 20 20

66 Cubic Centimetres Of Silver Is Drawn Into A Wire 1 Mm In... h = 66 Cubic Centimetres Of Silver Is Drawn Into A Wire 1 Mm In... 66 x 20 x 20 x 7 66 Cubic Centimetres Of Silver Is Drawn Into A Wire 1 Mm In... = 8400 cm = 84 m. 22


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