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Q. No.Three liquids of densities \(d,\) \(2d\) and \(3d\) are mixed in equal proportions of weights. The relative density of the mixture is:
| 1. | \(11d \over 7\) | 2. | \(18d \over 11\) |
| 3. | \(13d \over 9\) | 4. | \(23d \over 18\) |
Subtopic: Properties of Fluids |
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