a. Between 1959 and 1978, China saw an average yearly economic growth rate of 3.5%.
b. From 1979 through 1986, the average yearly economic growth rate was 10%.
The value difference between all goods and services produced during a specific time period and those produced earlier in the same time period, expressed as a percentage, is a country's economic growth rate. Using its growth rate, an economy's comparative health across time is determined.
According to the rule of 70, the number of years before a variable doubles can be estimated by dividing 70 by the rate of increase. Therefore, if we know the number of years it actually did take for a variable to double, we may modify the rule of 70 to determine the average growth rate, x.
[tex]\frac{70}{x}[/tex] = 20
[tex]\frac{70}{20}[/tex] = x
x= 3.5%
China's average yearly economic growth rate between 1959 and 1978 was 3.5%.
The rule of 70 suggests that real per capita GDP will double in just 7 years: [tex]\frac{70}{7}[/tex] = 10%
Between 1979 and 1986, the average yearly economic growth rate was 10%.
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