Question

The population of town is 60000 . if the birth rate is 7.5percent p. a. and the death rate is 4.5percent p. a. Find the population of town after 1(1/2)years

Answer 1

ans. population after 1.5 years = 62,727

Answer 2

Answer:

Total population after  $1\frac{1}{2}$ year is = 62727

Step-by-step explanation:

In this question

We have been given that

Population of town is 60000

Birth rate is 7.5 percent p. a. and the death rate is 4.5 percent p. a

Now, P = 60000, R = (7.5 - 4.5) = 3%, T = $1\frac{1}{2}$

Population after $1\frac{1}{2}$ year

$A$ = $P\times (1 + \frac{r}{100})^t$

$A$ = $60000\times (1 + \frac{3}{100})^1$

$A$ = $60000\times (\frac{103}{100})$

$A$ = $61,800$

Now, $\farc{61,800}{100}\times \frac{1}{2}\times 3$

= 927

So, total population after  $1\frac{1}{2}$ year is = 61800 + 927

                                                                                      = 62727