A, B and C enter into a partnership in the ratio 7/2 : 4/3 : 6/5 . After 4 months, A increases his share 50%. If the total profit at the end of one year be Tk. 21,600, then B's share in the profit is-

Question: A, B and C enter into a partnership in the ratio 7/2 : 4/3 : 6/5 . After 4 months, A increases his share 50%. If the total profit at the end of one year be Tk. 21,600, then B's share in the profit is-Solution:Ratio of initial investments = 7/2 : 4/3 : 6/5 = 105 : 40 : 36.Let the initial investments be 105x, 40x and 36x.A : B : C = {105x × 4 + (150/100) × 105x × 8} : (40x × 12) : (36x × 12)= 1680x : 480x : 432x = 35 : 10 : 9.Hence, B's share = Tk. 21600 × (10/54) = Tk. 4000.