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ATQ, Ratio of profit shares of 'A' and 'B' at the end of the year = {(6x X 5) + (6x - 100) X 7} : {(8x X 5) + (8x + 500) X 7} = (30x + 42x - 700) : (40x + 56x + 3500) = (72x - 700) : (96x + 3500) Now, profit share of 'B' = 33000 - 11000 = Rs. 22,000 ATQ; [(72x - 700) / (96x + 3500)] = 11000 / 22000 So, investment of 'B' = 700 X 8 = Rs. 5,600
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