The length of two trains are 130 m and 150 m are running at the speed of 52 km/hr and 74 km/hr, respectively on parallel tracks in opposite directions. In how many seconds will they cross each other?
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The length of two trains are 130 m and 150 m are running at the speed of 52 km/hr and 74 km/hr, respectively on parallel tracks in opposite directions. In how many seconds will they cross each other?