Bar Charts Questions

The bar chart represents sales of four companies C1, C2, C3 and C4 (in millions) for the year 2012, 2013 and 2014.

Consider the bar chart and answer questions based on it.

The combined sales of C2 in 2012 and 2014 is how much more than that of C3 for the same years?

The bar graph shows the population of different countries. Study the diagram and answer the following questions.

What is the ratio of population of country A to that of country G?