Task: Question Answering
Input (English): Problem: a family travelled for 12 hours . they covered the first half of the distance at 35 kmph and remaining half of the distance at 40 kmph . find the distance travelled by the family ? 
Options: a ) 270 km , b ) 890 km , c ) 684 km , d ) 320 km , e ) 560 km
Output (English): e