In a certain country a person is born every 7 seconds and a person dies every 13 seconds. Therefore, the birth and death rates account of a population growth rate of one person every-0

In a certain country a person is born every 7 seconds and a person dies every 13 seconds. Therefore, the birth and death rates account of a population growth rate of one person every-0 Correct Answer 15.17 seconds

Hints: Let x be the number of seconds for the birth of new person. Birth rate - Death rate = Population growth 1 person / 7 seconds - 1 person / 13 seconds = 1 person / x seconds বা, 6 person /91 seconds = 1 person / x second x = 91 / 6 = 15.17 seconds
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