Task: Question Answering
Input (English): Problem: a man complete a journey in 1010 hours . he travels first half of the journey at the rate of 2121 km / hr and second half at the rate of 2424 km / hr . find the total journey in km . 
Options: a ) 121 km , b ) 242 km , c ) 224 km , d ) 112 km , e ) 110 km
Output (English): c