Question

In Vietnam, there were 16 births and 6 deaths out of every 100 people in the year 2011. Using the rule of 70, estimate the doubling time for Vietnam's population?

Answer 1

Using the rule of 70, by subtracting the death rate from the birth rate to get the net growth rate and dividing 70 by it, the doubling time for Vietnam's population in 2011 is estimated to be approximately 7 years.

Step-by-step explanation:

To estimate the doubling time for Vietnam's population using the rule of 70, subtract the death rate from the birth rate to determine the net growth rate, then divide 70 by this net growth rate.

In Vietnam, the birth rate in 2011 was 16 per 100 people, and the death rate was 6 per 100 people. The net growth rate per 100 people is therefore 16 births - 6 deaths = 10 people. To apply the rule of 70:

• Doubling Time = 70 / Net Growth Rate
• Doubling Time = 70 / 10
• Doubling Time = 7 years

So, using the rule of 70, the estimated doubling time for Vietnam's population in 2011 is approximately 7 years.