Task: Question Answering
Input (English): Problem: a cricketer whose bowling average is 12.4 runs per wicket takes 5 wickets for 26 runs and thereby decreases his average by 0.4 . the number of wickets taken by him till the last match was : 
Options: a ) 64 , b ) 72 , c ) 80 , d ) 85 , e ) none of the above
Output (English): d