Chihi Airways had the following results for the past three years:
![1690_Table 7.jpg](https://secure.tutorsglobe.com/CMSImages/1690_Table%207.jpg)
Required
a. Calculate the following for 2011, 2010, and 2009:
1. Operating ratio
2. Long-term debt to operating property
3. Operating revenue to operating property
b. Comment on trends found in the ratios computed in (a).
c. Comment on the passenger load factor.