Task: Question Answering
Input (English): Problem: a car started running at a speed of 30 km / hr and the speed of the car was increased by 2 km / hr at the end of every hour . find the total distance covered by the car in the first 9 hours of the journey . 
Options: a ) 342 km , b ) 352 km , c ) 642 km , d ) 742 km , e ) 382 km
Output (English): a