Task: Question Answering
Input (English): Problem: a 270 m long train running at the speed of 120 kmph crosses another train running in opposite direction at the speed of 80 kmph in 9 second . what is the length of the other train ? 
Options: a ) 150 m , b ) 230 m , c ) 290 m , d ) 310 m , e ) 420 m
Output (English): b