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The rate at which the population of a city varies as the population at that time in period of 20 year population increased from 10 lakhs to 14 lakhs. Find the population in another 20 years. |
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Answer» Let rate of increase is `R%`. Then, `1400000 = 1000000(1+R/100)^20` `=>(1+R/100)^20 = 14/10` So, after another `20` years population will be, `=1400000(1+R/100)^20` `= 1400000**14/10 = 1960000` So, population after another `20` years will be `19.6 Lakhs`. |
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