What was the ratio of the combined sales of the two highest selling models to that of the two lowest selling models in 2011?
Two highest selling models in 2011 = (27% + 26%) of 2884
Two lowest selling models in 2010 = (8% + 6%) of 2884
Their ratio = (27% + 26%) of 2884 : (8% + 6%) of 2884
= 53% of 2884 : 14% of 2884
= 53 : 14
= 4 : 1 (approx)
Hence, option D is the correct answer.
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