Task: Question Answering
Input (English): Problem: a , b and c invest in the ratio of 3 : 4 : 5 . the percentage of return on their investments are in the ratio of 6 : 5 : 4 . find the total earnings , if b earns rs . 350 more than a : 
Options: a ) 10150 , b ) 7250 , c ) 2767 , d ) 1998 , e ) 2771
Output (English): a