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Continue to ChatTwo trains 140 m and 160 m long run at the speed of 60 km/hr and 40 km/hr respectively in opposite directions on parallel tracks. The time (in seconds) which they take to cross each other, is? https://pastmcqs.pk/two-trains-140-m-and-160-m-long-run-at-the-speed-of-60-km-hr-and-40-km-hr-respectively-in-opposite-directions-on-parallel-tracks-the-time-in-seconds-which-they-take-to-cross-each-other-is/