List of top General Management Questions on Pie Charts

The following pie-chart shows the amount collected by a shopkeeper by selling four different food items in degrees. The total amount collected is Rs.64,800. The amount collected by selling Chinese dishes is approximately what percentage more than the amount collected by selling Bengali dishes?
The production of iron by company A in 2013 is what percent of the total iron produced by all the companies during the given year?
Company D produced 75% more iron in 2014 than produced by it in 2013. What percent of iron produced in 2014 was produced by company D?
The following pie-chart shows the amount collected by a shopkeeper by selling four different food items in degrees. The total amount collected is Rs.64,800. Find the average amount collected from the sales of Bengali dishes, Punjabi dishes and Gujarati dishes.