Consider the bar chart and answer questions based on it.
The bar chart represents sales of four companies C1, C2, C3 and C4 (in millions) for the year 2012, 2013 and 2014.
The ratio of combined sales of Cl and C4 in the year 2013 to that of year 2012 is
Required ratio = (85 + 110) : (95 + 100) = 195 : 195 = 1 : 1.
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