Q. 114.2( 5 Votes )

The annual rate o

Answer :

Let 3 years ago population = P


Present population = 33275


Time, n = 3 years


Increases rate, R = 10% per annum


Now,


Amount (A) = P (1 + R/100)n [Where, A = Amount with compound interest


P = Present value


R = Annual interest rate


n = Time in years]


Population = P (1 + R/100)n


33275 = P (1 + 10/100)3


33275 = P (1 + 1/10)3


33275 = P (11/10)3


33275 = P × 1331/1000


P = 33275 × 1000/1331


P = 25 × 1000


P = 25000


3 years ago population is 25000.

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