If the annual decrease in the population of a town is 13% and the present population is 22707, then what was the population 2 years ago?
Answer & explanation
Correct answer: option 4
13 % = \(\frac{13}{100}\)
1st year 100 87
2nd year 100 87
----------- ---------
10000 7569
↓ x3 ↓ x3
30000 22707