Task: Question Answering
Input (English): Problem: in the faculty of reverse - engineering , 300 second year students study numeric methods , 600 second year students study automatic control of airborne vehicles and 200 second year students study them both . how many students are there in the faculty if the second year students are approximately 70 % of the total ? 
Options: a ) 750 , b ) 800 , c ) 900 , d ) 950 , e ) 1000
Output (English): e