Question

The pollution of a town was 77,000 and increased by 11/2% in the next 5 years. What did it become?​

Answer 1

Step-by-step explanation:

current population= 77000

%increasing= 11/2%

therefore population in next two years = 77000(1+11/2%)^5

= 77000+11,067.3875

=88,067.3875

= 88067 is the population after 5 years

Answer 2

Step-by-step explanation:

The population after 5 years using the formula of S. I. :-

$\sf = \frac{ \cancel{770} \cancel{00} \times 11 \times 5}{ \cancel{2} \times 1 \cancel{00}} \\ \sf = 385 \times 11 \times 5 \\ \sf \: = 21175 \:$

After 5 years the population will be :

77,000 + 21,175 = 98,175 ans.