Explanation
Given:
Present value =₹ 10000
Interest rate =10% per annum
Amount (A)=P(1+(r/100))n
Now substituting the values in above formula we get,
⇒A=10000(11/10)3
⇒A=121(10)(11)
∴ Compound interest = A – P
= 13310 – 10000= ₹\ 3310
Let the population be P.
So, the increased population will be P + 1200.
The population after 11\% decrease in population becomes P - 32.
Therefore,
{{P}} - 32 = \left( {{{P}} + 1200} \right) - \dfrac{{11}}{{100}}\left( {{{P}} + 1200} \right)
{{P}} = 10000
So, the total population is 10000.
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