Question: Two trains are running on parallel lines in the same direction at the speed of 50 km/h and 30 km/h respectively. Given that the faster

Two trains are running on parallel lines in the same direction at the speed of 50 km/h and 30 km/h respectively. Given that the faster train crosses a man in the slower train in 18 seconds, what is the length of the faster train?

(a) 170 m

(b) 100 m

(c) 98 m

(d) 85 m

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