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Since, ‘A’ and ‘B’ invested their sums for equal period, therefore, ratio of the profit received by ‘A’ and ‘B’ will be equal to the ratio of sum invested by them i.e. 5:4, respectively Let the total profit received by them be Rs. 100x Therefore, profit distributed between ‘A’ and ‘B’ = 0.81 × 100x = Rs. 81x Profit received by ‘A’ = 81x × (5/9) = Rs. 45x According to the question, 45x = 945 Or, x = 21 Therefore, total profit received by ‘A’ and ‘B’ = 100x = Rs. 2100
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