$9\mathrm{.}35.$ A gas stream contains particles of three sizes $-10,7,$ and $3.$ The particle density is the same for all three sizes, and the weight concentration in the gas stream of each of the three sizes of particles is the same $(0\mathrm{.}33333).$ We pass this gas stream through an ESP that

obeys Eq$.(9\mathrm{.}30).$ Assume that Eq$.(9\mathrm{.}26)$ is correct and the drift velocity is proportional to the diameter.

The overall collection efficiency of the precipitator $($weight fraction of all the entering particles captured$)$ is $95$ percent. What are the individual percent collection efficiencies for each of the three sizes of particle?