Task: Question Answering
Input (English): Problem: suraj has a certain average of runs for 8 innings . in the 9 th innings he scores 90 runs thereby increasing his average by 6 runs . what is his average after the 9 th innings ? 
Options: a ) 42 , b ) 64 , c ) 36 , d ) 72 , e ) 27
Output (English): a