Task: Question Answering
Input (English): Problem: a man whose bowling average is 12.4 , takes 6 wickets for 26 runs and there by decreases his average by 0.4 . the number of wickets taken by him before his last match is ? 
Options: a ) 113 , b ) 114 , c ) 115 , d ) 116 , e ) 117
Output (English): c