Correct Answer: Option D
Ratio of initial investments = (7/2 : 4/3 : 6/5) = 105 : 40 : 36
Let the initial investments be 105x, 40x and 36x.
So, A : B : C = (105x x 4 +150/100 x 105x x 8) : (40x x 12) : (36x x 12)
= 1680x : 480x : 432x
= 35 : 10 : 9.
Hence, B's share = Tk.(21600 x10/54)
= Tk. 4000.
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