The task is to generate the correct answer for a given math problem.

Problem: the average of 6 no . ' s is 3.95 . the average of 2 of them is 3.8 , while the average of theother 2 is 3.85 . what is the average of the remaining 2 no ' s ?
4.2

Problem: 1370 , x , 1070 , - 180 , - 6430
1320

Problem: if p / q = 3 / 11 , then 2 p + q = ?

17