Question

A train 110 metres long travel 60 km/hr. how long does it take to cross another train 170 metres long running at 80 km/hr in opposite direction

Answer 1

Total distance is 280m
And speed is 140km/h or
So time is 0.28/140=0.002m
Hope it help you

Answer 2

Answer:

7.2 s

Step-by-step explanation:

D = 110 + 170 = 280 m

Speed = (60 + 80) = 140 km/h

                              = 140 * (5/18) m/s

Time = D / Speed

        = (280 * 18) / (140 * 5) s

        = 7.2 s