Task: Question Answering
Input (English): Problem: a 270 metres long bullet train running at the speed of 120 kmph crosses another bullet train running in opposite direction at the speed of 80 kmph in 9 seconds . what is the length of the other bullet train ? 
Options: a ) 226 , b ) 230 , c ) 430 , d ) 310 , e ) 260
Output (English): b