Task: Question Answering
Input (English): Problem: teacher took exam for english , average for the entire class was 80 marks . if we say that 10 % of the students scored 95 marks and 20 % scored 90 marks then calcualte average marks of the remaining students of the class . 
Options: a ) 60 , b ) 70 , c ) 65 , d ) 75 , e ) 80
Output (English): d