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: income and expenditure of a person are in the ratio 7 : 6 . if the income of the person is rs . 14000 , then find his savings ?
2000

Problem: if the price of a certain computer increased 30 percent from b dollars to 351 dollars , then 2 b =

540