Task: Question Answering
Input (English): Problem: a student scored an average of 70 marks in 3 subjects : physics , chemistry and mathematics . if the average marks in physics and mathematics is 90 and that in physics and chemistry is 70 , what are the marks in physics ? 
Options: a ) 130 , b ) 120 , c ) 110 , d ) 180 , e ) 150
Output (English): c