Physics 5054 · O Level · Density

Density — practice question

A measuring cylinder initially contains $100\,\text{cm}^3$ of liquid paraffin, and water is then poured in. (The density of paraffin is $0.80\,\text{g cm}^{-3}$, while the density of water is $1.0\,\text{g cm}^{-3}$.) When the water has been added, the paraffin level increases to $150\,\text{cm}^3$. The paraffin and water do not mix. What is the final total mass of liquid in the measuring cylinder?

  • A$130\,\text{g}$
  • B$140\,\text{g}$
  • C$167\,\text{g}$
  • D$175\,\text{g}$

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