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Example 14: The population of a city was 20,000 in the year 1997. It increased atthe rate of 5% pa. Find the population at the end of the year 2000. |
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Answer» :A = P(1+ R/100)NInitial population of the city (P) = 20,000Rate of increase (R) = 5% paN (number of years) =3Population of the city after 3 years = AA = 20000(1+5/100)³ = 20000(105/100)³ = (20000*105*105*105)/(100*100*100)A = 23152.5So, population of city after 3 years = 23152.5 |
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