Task: Question Answering
Input (English): Question: The average salary of a person for the months of January, February, March and April is Rs.8000 and that for the months February, March, April and May is Rs.8600. If his salary for the month of May is Rs.6500, find his salary for the month of January?

 Option A: s.4100

 Option B: s.4270

 Option C: s.4500

 Option D: s.4550

 Option E: s.2500
Output (English): Option A