Study the following graph and answer the question that follows.
What is the total ratio of the revenue of the company in 2016 and 2018 to that of the total expenditure in 2015 and 2017 respectively?
What is the difference (in βΉ) between the compound interest, when interest is compounded 6-monthly, and the simple interest on a sum of βΉ10,000 for 1(1/2) years at 10% p.a.?