When the distance of the two trains was 8 km 750 m they started moving in parallel railways towards each other if the speed of the two trains was 30 km per hour and 40 km per hour, but after how long. Will the two trains meet?
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Answer: 7.5 minutes
Explanation:
750 m = 750/1000 km = 0.75 km
8 km 750 m = 8.75 km
Since the trains are moving towards each other
Relative speed = 30 km/h + 40 km/h = 70 km/h
Time = Distance/Speed = 8.75/70 = 0.125 h
= 0.125×60 min = 7.5 min
Hope it helped
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