B.ed.
Exam
Numerical Ability
Time Distance and Speed
A train in motion 66m long overtakes a train 88m long travelling at 30 km per hour in the opposite direction in 0.168 min .The speed of the first train is ?
Read Solution (Total 1)
-
- 25 km/hr
Total distance = 66+88 = 154 m = 0.154 km.
Let the speed of the first train be 'x' km, then time taken to overtake = 0.154/(x+30) = 0.168/60 hrs.
=> 154/(x+30) = 168/60
=> 11/(x+30) = 12/60
=> x = 25 - 5 years agoHelpfull: Yes(0) No(0)
B.ed. Other Question