Question

If the population of a country increases at a rate of 1.5% annually, and its current population is 430,000, how many years will it take for the population to triple? 2 years 150 years 73 years 3 years

Answer 1

the answer is C on Plato.     t = 74 years

Answer 2

About 73 years. You would use the compound interest formula.

1290=430 ( 1 + 1.5/100) ^ t

t = 73.788 years