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Volume and Surface Area - Data Intensity 1 :: Discussion
| 4. | 66 cubic centimetres of silver is drawn into a wire 1 mm in diameter. The length of the wire in metres will be? | |
| A. | 84 | |
| B. | 90 | |
| C. | 168 | |
| D. | 336 | |
| Answer: Option A | |
| Explanation: | |
|
Let the length of the wire be h. Radius= 1/2 mm =1/20cm. Then, => 22/7 x 1/20 x 1/20 x h = 66. => h = [(66 x 20 x 20 x 7)/22] = 8400 cm = 84 m. |
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