Task: Question Answering
Input (English): Problem: the first doughnut is priced at $ 1 and then if you purchase additional doughnuts as dozens then the price is $ 6 / dozen . what is the total number of doughnuts purchased if you paid $ 25 ? 
Options: a ) 45 , b ) 49 , c ) 53 , d ) 57 , e ) 61
Output (English): b