Study the following graph to answer these questions:
The percentage profits of four leading airliners A, B, C and D for six years 18 shown in the line graph below.
The total revenue generated by all the companies jn-2014 is ₹3600 ctore. The revenue of C is 30% of the total revenue. The revenue generated by A, B and D in the same year is $$\frac{7}{25}, \frac{2}{5}$$ and $$\frac{8}{25}$$ respectively of the remaining revenue. The maximum investment in that year is made by ...........