Answer:
Smallest increase in car occurred in:
1930 - 1940
Step-by-step explanation:
(The question is incomplete because the chart is not given. I have attached the full question at the bottom, for a better understanding of the question)
Lets calculate the increase from looking at the chart for different options.
1900 - 1920:
In 1900, the number of owners are 0 millions
in 1920, then number of owners are slightly less than 10, consider it to be 8 million.
Increase in ownership = 8 millions - 0 millions
Increase in ownership = 8 millions (approx)
1920 - 1930:
In 1920, the number of owners are 8 millions
in 1930, then number of owners are slightly more than 20, consider it to be 23 million.
Increase in ownership = 23 millions - 8 millions
Increase in ownership = 15 millions (approx)
1930 - 1940:
In 1930, the number of owners are 23 millions
in 1940, then number of owners are slightly less than 30, consider it to be 27 million.
Increase in ownership = 27 millions - 23 millions
Increase in ownership = 4 millions (approx)
1940 - 1950:
In 1940, the number of owners are 27 millions
in 1950, then number of owners are 40 millions
Increase in ownership = 40 millions - 27 millions
Increase in ownership = 13 millions (approx)