|Subject: IIT model test paper(aptitude test) doubt Sat Apr 03, 2010 5:21 pm|| |
|could someone please solve this????(i'm just a beginner and i went through this model test paper for the first time .....so i'm getting stuck!) |
two trains A and B start simultaneously from stations X and Y towards each other respectively. after meeting at a point between X and Y ,train A reaches station Y in 9 hrs and train B reaches station X in 4 hrs from the time they have met each other , if speed of train A=36 km/hr what is the speed of train B?
b)54 km /hr
PS:the ans given at the back is 54 but i dont understand how.please help!!!!!