Track A has 219000 seats and track B has 62000 seats.
Explanation
Suppose, the number of seats at track B is [tex]x[/tex]
As track A has 33000 more seats than 3 times the number of seats at track B, so the number of seats at track A will be: [tex]3x+33000[/tex]
Given that, the total number of seats in the two tracks is 281000. So the equation will be.....
[tex]x+(3x+33000)=281000\\ \\ 4x=281000-33000\\ \\ 4x=248000\\ \\ x=\frac{248000}{4}=62000[/tex]
So, the number of seats at track B is 62000 and the number of seats at track A is [tex][(3*62000)+33000] = 219000[/tex]