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A man’s investment doubles in every 10 years. If he invested Rs.10000 in each of the years of 1980, 1990 and 2000, then what was the total amount received by him in 2010?

A man’s investment doubles in every 10 years. If he invested Rs.10000 in each of the years of 1980, 1990 and 2000, then what was the total amount received by him in 2010? Correct Answer 140000

Total amounted received by him in 2010 = (10000*23)+(10000*22)+(10000*2)=Rs.140000.

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