two trains a and b running on parallel lines enter a tunnel 2 km long at the opposite ends at the same time . they meet in 1.5 minutes and a has travelled the tunnel 400m more than b.in 4.5 seconds they cross each other and 1 min later a has completely passed through the tunnel.find the length and rate of the trains
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Answer:
1320km.
1320km.PLS MARK MY ANSWER AS BRAINLIEST
Step-by-step explanation:
Let the two trains meet after x hours. Then, 60x−50x=120⇒10x=120⇒x=12hrs
Distance AB = (Dist. covered by slower train) + (Dist. covered by faster train)
=[(50×12)+(60×12)]km
=600km+720km=1320km
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