Question

During one year, the population of a town increased by 5% and during the next year, the population decreased by 5%. If the total population is 29925 at the end of the second year, then what was the population size in the beginning of the first year

Answer 1

Answer:

30000

Step-by-step explanation:

Let the population at beginning of first year be x.

At the end of 1st year, the population was 1.05x.

At the end of 2nd year, the population was = 1.05x * 0.95 = 0.9975x.

This equals 29925.

0.9975x = 29925.

x = 29925/0.9975 = 30000

Thus population at beginning of 1st year = 30000