Question

$\huge\fbox\pink{ \: question \: } \:$



three years ago , the population at a town was 50000 , if the annual increase during three successive years at the rate 4% , 5% and 4% per annum respectively , find the present population ?



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Answer 1

56784

We can write is as +4% = +1/25

and +5% = +1/20

So

$\\ 25 - - - - - - 26 \\20 - - - - - - 21 \\ 25 - - - - - - 26 \\ - - - - - - - - \\ = 12500 - - - - - 14196$

And given that value of 12500 = 50000

,i.e. ×4

So present population(14196)= 14196×4

=56784

Answer 2

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