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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. 3:2, respectively Let the total profit received by them be Rs. 100x Therefore, profit distributed between ‘A’ and ‘B’ = 0.88 × 100x = Rs. 88x Profit received by ‘A’ = 88x × (3/5) = Rs. 52.8x According to the question, 52.8x = 1320 => x = 25 Therefore, total profit received by ‘A’ and ‘B’ = 100x = Rs. 2500
The mean proportion of 289 and 144 is:
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