Question

Two trains are coming from opposite directions with speeds of 75km/hr and 100km/hr on two parallel tracks.At some moment the distance between them is 100 km.After T hrs, distance between them is again 100km.T is equal to​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

8/7 hour

Step-by-step explanation:

here the length of the train= 100+100= 200 km

trains recon opposite direction

so speed = S1+ S2=75+100=175 km/hr

time= distance/speed=200/175=8/7hour