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the population of a town doubled in 5 years then doubled again in the next 10 years. what is the percent increase?

Respuesta :

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The formula for percentage increase is:

% increase = ΔPopulation/Population of base year * 100

In this problem, let x be the population of the base year. Hence, after 5 years, the population becomes 2x. Then, consequently, after 10 years, the population doubles to 4x. So, the ΔPopulation = 4x - x = 3x. Therefore,

% increase = x/3x * 100 = 33%

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