Task: Question Answering
Input (English): Problem: a train leaves delhi at 9 a . m . at a speed of 30 kmph . another train leaves at 3 p . m . at a speed of 40 kmph on the same day and in the same direction . how far from delhi , will the two trains meet ? 
Options: a ) 229 , b ) 288 , c ) 600 , d ) 720 , e ) 121
Output (English): d