UPSC CDS 2 2018 GK Paper

If two miscible liquids of the same volume (V) but different densities P1 and P2 are mixed,then P1 and P2 are mixed,then,mass of first liquid =P1V1;mass of second liquid =P2V and total volume =2V
Therefore, density of the finalmixture = Total mass/Total volume =

(P1+P2)

2