Task: Question Answering
Input (English): Question: The average of 11 numbers is 10.9. If the average of first six is 10.5 and that of the last six is 11.7 the sixth number is?

 Option A: 11.4

 Option B: 11.3

 Option C: 13.3

 Option D: 11.5

 Option E: 11.1
Output (English): Option C