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The population of a country was 55 crore in 2005 and is growing at 2% p.a. C.I. , the population in the year 2015 is estimated as ?2) The sum of n terms of an AP whose first term is 5 and common difference is 36 is equal to the sum of 2n terms of another AP whose first term is 36 and common difference is 5. Find 'n'.

please help me with these questions as soon as possible!!!

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