Task: Question Answering
Input (English): Problem: by travelling at 70 kmph , a person reaches his destination on time . he covered two - third the total distance in one - third of the total time . what speed should he maintain for the remaining distance to reach his destination on time ? 
Options: a ) 25 kmph , b ) 20 kmph , c ) 28 kmph , d ) 35 kmph , e ) 32 kmph
Output (English): d