The density of water is 1.0 gcm$^{-3}$ and the density of glycerine is 1.3 gcm$^{-3}$.
Water is added to a measuring cylinder containing 40 cm$^3$ of glycerine so that the density of the mixture is 1.1 gcm$^{-3}$. Assume that the mixing process does not change the total volume of the liquid.
What is the volume of water added?
1 )
40 cm$^3$
2 )
44 cm$^3$
3 )
52 cm$^3$
80 cm$^3$
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