Mechanical Properties of Fluids

Question: Three liquids of densities $d,\,2d$ and $3d$ are mixed in equal proportions of weights. The relative density of the mixture is



1) $\frac{11d}{7}$
2) $\frac{18d}{11}$
3) $\frac{13d}{9}$
4) $\frac{23d}{18}$
Solution: Explanation: No Explanation
Pressure and Density

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