A person can complete a journey in 9 hours. He covers the first one-third part of the journey at the rate of 10 km/h and the remaining distance at the rate of 20 km/h. What is the total distance of his journey (in km)?
A143
B135
C144
D141
A143
B135
C144
D141
Related Questions:
Two trians X and Y start at the same time, X from station A to B and Y from B to A. After passing each other, X and Y take hours and hours, respectively, to reach their respective destinations. If the speed of X is 50 km/h, then what is the speed (in km/h) of Y?