other govt exam BARC DAE Junior Purchase Assistant / Junior Storekeeper Mock Test Quantitative Aptitude Speed Time and Distance Relative Speed
Trains A and B are running in the same direction at a speed of 84 km/hr. and 90 km/hr. respectively, while train C and D are approaching them from the opposite direction at a speed of 72 km/hr. and 64 km/hr. respectively. What is the difference between the relative speeds of the trains A & C and the trains B & D?
1
2 km/hr.
2
6 km/hr.
3
10 km/hr.
4
14 km/hr.