Two trains A and B can run at a speed of 54 km/hr and 36 km/hr on a parallel tracks. When they are running in opposite directions, they pass each other in 10 s. When they move in the same direction, a person sitting in the faster train crosses the other train in 30 s. Find the length of the trains.( faster and slower respectively).

Let the lengths of the two trains A and B be a and b.

Give the answer as \(\frac{a}{b}\).. (correct to two decimal places)

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