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Formula 1 Let P be the population of a c...

Formula 1 Let P be the population of a city or a town at the beginning of a certain year and the population grows at a constant rate of `R %` per annum then population after n years `=P(1+ R/100)^n`

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Formula 3 Let P be the population of a city or a town at the beginning of a certain year. if the population decreases at the rate of R% per annum then population after n years = P (1- R/100)^n

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