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24 January, 05:44

In 1900, the average life expectancy in the United States was 47.3 years. In 2015, the average life expectancy was 78.8 years. Calculate the percentage increase in life expectancy from 1900 to 2015

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  1. 24 January, 06:45
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    The percentage increase in expectancy between the years 1900 and 2015 will be:

    (expectancy in 2015 - expectancy in 1900) / (expectancy in 1900) * 100

    = (78.8-47.3) / 47.3*100

    =66.6%
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