Task: Question Answering
Input (English): Problem: in an election between two candidates , one got 55 % of the total valid votes , 20 % of the votes were invalid . if the total number of votes was 7500 , what was the number of valid votes that the other candidate got ? 
Options: a ) 2800 , b ) 2700 , c ) 2100 , d ) 2500 , e ) none of these
Output (English): b