In a certain country, a person born every 8 seconds and a person dies every 12 seconds. Therefore, the birth and death rates amount for a population growth rate of one person every-

Question: In a certain country, a person born every 8 seconds and a person dies every 12 seconds. Therefore, the birth and death rates amount for a population growth rate of one person every-Solution:Let, x be the number of seconds for the birth of every new person.We know,Birth rate - Death rate = Population growthATQ,⇒ 1 person/8 seconds - 1 person/12 seconds = 1 person/x seconds ⇒ (3 - 2) person/24 seconds = 1 person/x seconds⇒ 1 person/24 seconds = 1 person/x seconds∴ x = 24 seconds