Equal masses of water and a liquid of density 2 are mixed together, then the mixture has a density of
Correct answer: B. 4/3
- A. 2/3
- B. 4/3
- C. 3/2
- D. 3
Explanation
Take equal masses m of densities 1 and 2. Total mass = 2m; total volume = m/1 + m/2 = 1.5 m ⇒ density = (2m)/(1.5 m) = 4/3.
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