Question

The population of a place increased to 194481 in 2014! @5%per annum the population in 2012 was with answer

Answer 1

Answer:

we use formula of amount of compound interest to find population  

A( 2014)= 194481

R = 5%,  

n = 2  years

  In 2012 Population would be less than 2014 in two years.

 A(2014)= P(2012)(1+R/100)^n

194481 = P (2012)(1+5/100)²

194481 = P(2012)(1+1/20)²

 194481= P(2012)(21/20)²

194481= P(2012)((21×21)/(20×20))

  P(2012)=( 194481×20×20)/21×21

  Population in 2012= 176400

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@GauravSaxena01