2 hours after a freight train leaves Delhi a passenger train leaves the same station traveling in the same direction at an average speed of 16 km/hr. After traveling 4 hrs the passenger train overtakes the freight train. The average speed of the freight train was?
RE: 2 hours after a freight train leaves Delhi a passe...
None of the above. I get 10.67 km/h.The passenger train moves 64 km in 4 hours until it catches the freight train. If the freight train has a 2 hour head start it moves 64 km in 6 hours which is an average speed of 10.67 km/hLook at the question. If the passenger train is traveling at 16km/h and it catches the freight train it must be moving faster.... but all the answers say the freight train is moving faster which cannot be correct.I think there's a type-o in this question
RE: 2 hours after a freight train leaves Delhi a passe...
Let the speed of the freight train be x km/hr
speed of the passenger train is 16 km/hr.................. (given)
Now the passenger train overtakes the freight train after 4 hrs so the freight train by this time would have travelled for 6 hrs(2hrs+4hrs).since we know that passenger train starts after 2hrs.
therefore distance travelled by freight train in 6hrs distance travelled by passenger train in 4hrs( as they meet)
x*6 16*4 6x 64
x 10.67 km/hr
therefore the speed of freight train is 10.67 km/hr
RE: 2 hours after a freight train leaves Delhi a passenger train leaves the same station traveling in the same direction at an average speed of 16 km/hr. After traveling 4 hrs the passenger train overtakes the freight train. The average speed of the freig
To Get the valid answer from the options the passenger train speed should be 60 kmph instead of 16kmph. than by calculating we get the frieght train speed as 40 kmph.
