Task: Question Answering
Input (English): Question: 40% of Ram's marks is equal to 20% of Rahim's marks which percent is equal to 30% of Robert's marks. If Robert's marks is 80, then find the average marks of Ram and Rahim?

 Option A: 12

 Option B: 61

 Option C: 17

 Option D: 90

 Option E: 15
Output (English): Option D