Question

The bird population on an island is declining at a rate of 2.2% per year. The population was 3500 in the year 2016.

Which answer is the best prediction of the population in the year 2022?
 
a) 2730
b) 3063
c) 3132
d) 3423

Answer 1

B

Explanation:

I just took the k12 test

Answer 2

Option(b)

Explanation:

Let the population in 2022 will be x

Declining rate=2.2%

Population in 2016 year=3500

According to question

x=3500
`(100-(2.2)/(100)`)^{6}

x=3500
`((1000-22)/(1000)`)^{6}

x=3500
`((978)/(1000)`)^{6}

x=3500.978^{6}

x=3063

Thus, correct answer is option(b)