Question

Two substances of densities d1 and d2 are mixed in equal volume and relative density of mixture is 4. When they are mixed in equal masses, the relative density of the mixture is 3 the values of d1 and d2 are

Answer 1

Answer:

when two substances densities P1 and P2 are mixed in equal volume ,

Then V×P1+V×P2=(V+V) × 4

or P1+P2 = 8 ----(1)

when they are mixed in equal masses ,

m/P1 + m/P2 = (m+m)/(P)

or P=2 P1×P2 / P1+P2

or 3=2 P1×P2 / 8

or P1×P2 = 12 ----(2)

solving (1)&(2) we get , P1=6 and P2=2.