In year 2005 total population living in urban area is equal to sixty eight percent of educated population. The ratio of number of people living in urban area to people living in rural area is 43:12 in 2010. What is the ratio of the rural population in 2005 to that in 2010?
Explanation:
Total population of urban area in 2005 = 0.68 × 600 = 408 million
Total population in 2005 = 900 million
Therefore, population of rural area in 2005 = 900 – 408 = 492 million
Population of rural area in 2010 = 1255 × 1100 = 240 million
Therefore, the required ratio = 492/240 = 2.05
Hence, option (c).
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