Question

Two trains 100 m and 120 m long
respectively traveling in opposite
direction cross each other in 4 secs.
If the speed of one train is 90 kmph.
what is the speed of the other?​

Answer 1

Answer:

44 seconds

Step-by-step explanation:

Total distance 220m

Speed 72+54=126kmph= 126*5÷18

time= (220*18)/126*5 when train from opposite direction

Relative Speed for same direction = 72–54= 18

Time = (220*18)/18*5 = 44 Seconds