Compound Interest
The population of a city was 120000 in the year 2009. During the next year it increased by 6% but due to an epidemic it decreased by 5% in the following year. What is the population in the year 2011 ?
Population in 2009(p) = 120000
Since population increased by 6%. So, New population in 2010(P')
So the population in 2010 is 127200.
Now from this there was a decline in population by 5%.
So new population in 2011