Question

The present population of a town is 176400 if the rate of growth in its population is 5% per annum find its population one year ago
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Answer 1

Answer:

Population = 176400

rate = 5 %

Time = 1 year ago

$a = p(1 + \frac{r}{100}) - n$

$= 176400 {(1 + \frac{5}{100} })^{ - 1}$

$= 176400 ({ \frac{21}{20} })^{ - 1}$

$= 176400 \times \frac{20}{21}$

$= 168000$

hope it will be helpful ✌️

Answer 2

Answer:

p=176400

R=5%p.a

T=1year

A=p(1+r/100)to the power n

A=176400(1-5/100)^1

A=167580