A. 2,70,000
Feedback Share of A = 3x*3 = 9x
share of B = 2x*3 + 270*2 = 6x+540
Share of C =4x*3+270*1 = 12x+270
based on new ratio : 9x/3 = (12x+270)/53x=2.4x+54 or .6x=54 or x= 54/.6 = 90
so initial investments were : A : 270, B 180and C 360 (all in thousands).
The initial investment of each A = 2,70,000