A trader has two coffee-chicory mixtures - A and B - with weights 24 kg and 36 kg, respectively, and they have different prices per kg. Equal quantities of mixtures from A and B are removed. The portion taken from A is mixed with the remaining portion of B, and the portion taken from B is mixed with the remaining portion of A. If both resulting mixtures have the same price per kg, then find the initial quantity (in kg) of mixture removed from each.
16.2
14.4
13.8
15.6