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Rekha invested 10% more than Sonia, Sonia invested 10% less than Happy. If the total sum of their investments Rs. 57,800, how much amount

Rekha invested 10% more than Sonia, Sonia invested 10% less than Happy. If the total sum of their investments Rs. 57,800, how much amount did Happy invest? A) Rs.20000 B Rs.18000 1 P Rs.15000 D) Rs.16200 Question 7 The mean proportion of 1.69 and 8.61 is A) 2.32 B) 2.47 0.247 D) 0.033

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