In this task, you need to answer the given multiple-choice question on the general math. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

[Q]: Problem: in a theater , the first row has 12 seats and each row has 2 more seats than previous row . if the last row has 48 seats , what is the total number of seats in the theater ? 
Options: a ) 550 , b ) 570 , c ) 590 , d ) 610 , e ) 630
[A]: b


[Q]: Problem: how much percentage 80 is of 480 ? 
Options: a ) 16.5 , b ) 14.33 , c ) 12.5 , d ) 15.8 , e ) 16.66
[A]: e


[Q]: Problem: a man is 26 years older than his studen . in two years , his age will be twice the age of his student . the present age of his student is : 
Options: a ) 20 , b ) 21 , c ) 22 , d ) 23 , e ) 24
[A]:
e