A stream of 50% (by mass) A and 50% C is mixed with a stream of pure B in an extraction system. The mass feed rate of the A/C stream is half that of the pure B stream. What is the outlet mass of the...

A stream of 50% (by mass) A and 50% C is mixed with a stream of pure B in an extraction system. The mass feed rate of the A/C stream is half that of the pure B stream. What is the outlet mass of the C-rich phase per mass of C in the feed?

Note that A, B and C denotes the light, medium and heavy fraction in the triangular phase diagram.