Question

In a forest community, the total population of the deer population is 1,200. The birth rate of the deer population is 14/100, and the death rate is 10/100. How many deer were added to the population in one year?

a
14

b
48

c
86

d
168

Answer 1

The net increase of the deer population in the forest community is calculated by subtracting the number of deer that die (120) from the number of deer born (168), resulting in 48 deer added to the population in one year.

Step-by-step explanation:

In a forest community with a total deer population of 1,200, the birth rate is 14 per 100 (14%) and the death rate is 10 per 100 (10%). To find the number of deer added to the population in one year, we can calculate the difference between the number of births and deaths.

The number of deer born in a year is 14% of 1,200, which is:

1200 × (14/100) = 168 deer.

The number of deer that die in a year is 10% of 1,200, which is:

1200 × (10/100) = 120 deer.

To find the net increase, we subtract the number of deaths from the number of births:

168 - 120 = 48 deer.

Therefore, the number of deer added to the population in one year is 48, which corresponds to option b.

Answer 2

b, 48

Step-by-step explanation:

total population=1200

for every 100 deer, there are 14 births

so 14*12= 168

for every 100 deer there are 10 deaths

so 10*12= 120

168-120=48