A population falls by 12% in the first year. By what percentage must it increase in the second year so that at the end of the second year the population is exactly the same as the original?
Show answer & explanation
Correct answer: C
Explanation
Given:
Decrease in the first year = 12%
Assume the initial population = 100
After the first year = 100 − 12 = 88
Now 88 needs to be made 100 again.
Required increase = 100 − 88 = 12
Percentage increase = (12 / 88) × 100 = 13.6%