Task: Question Answering
Input (English): Problem: dhoni spent 40 percent of his earning last month on rent and 20 percent less than what he spent on rent to purchase a new dishwasher . what percent of last month ' s earning did dhoni have left over ? 
Options: a ) 30 % , b ) 28 % , c ) 32 % , d ) 33 % , e ) 34 %
Output (English): b