Consider the birth rate and death rate per ye | vedclass

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(B) To calculate the birth rate and death rate,we first need to determine the initial population size $(N_0)$.Given that the population after $5$ year

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$40 \%, 20 \%$

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(B) To calculate the birth rate and death rate,we first need to determine the initial population size $(N_0)$.Given that the population after $5$ years $(N_5)$ is $100$,the annual number of births $(B)$ is $20$,and the annual number of deaths $(D)$ is $10$.The net increase in population per year is $B - D = 20 - 10 = 10$.Over $5$ years,the total increase is $10 	imes 5 = 50$.Therefore,the initial population $N_0 = N_5 - 50 = 100 - 50 = 50$.Birth rate is calculated as $\frac{	ext{Number of births}}{	ext{Initial population}} = \frac{20}{50} = 0.4$ or $40 \%$.Death rate is calculated as $\frac{	ext{Number of deaths}}{	ext{Initial population}} = \frac{10}{50} = 0.2$ or $20 \%$.Thus,the birth rate is $40 \%$ and the death rate is $20 \%$.

Consider the birth rate and death rate per year in a given population.
Total population after $5$ years $\rightarrow 100$
Number of individuals dying per year $\rightarrow 10$
Number of individuals born per year $\rightarrow 20$

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Consider the birth rate and death rate per year in a given population.Total population after $5$ years $\rightarrow 100$Number of individuals dying per year $\rightarrow 10$Number of individuals born per year $\rightarrow 20$