Task: Question Answering
Input (English): Problem: the monthly incomes of a and b are in the ratio 5 : 2 . b ' s monthly income is 12 % more than c ' s monthly income . if c ' s monthly income is rs . 15000 , then find the annual income of a ? 
Options: a ) 187888 , b ) 276889 , c ) 267777 , d ) 504000 , e ) 297112
Output (English): d