In the following question we can have 2 such equations

- 2a + b = 140
- 2b + a = 140

Solving for a from the first one i am getting a as (40, 30) then when substituting then in both the equations i am getting possible answers as

40, 30, 60, 80 AND 50 and 55

Since 55 isnt there in the options shouldnt the correct answer be 40, 30, 60, 80, 50

But the correct option is only 40, 30, 60, 80