Task: Question Answering
Input (English): Problem: in a hostel there were 100 students . to accommodate 40 more students the average is decreased by rupees 10 . but total expenditure decreased by rs . 400 . find the total expenditure of the hostel now ? 
Options: a ) 1400 , b ) 2500 , c ) 3000 , d ) 1500 , e ) 2100
Output (English): e