Task: Question Answering
Input (English): Problem: in an exam 80 % of the boys and 40 % of the girls passed . the number of girls who passed is 120 , which is 2 / 3 rd of the number of boys who failed . what is the total number of students who appeared for the exam ? 
Options: a ) 1200 , b ) 380 , c ) 3800 , d ) 2180 , e ) 3180
Output (English): a