two trains 140 metres and 120 metres are running in the same direction with speeds 40 kmph and 60 kmph respectively. in what time will the faster train pass the slower one?

0.42 minutes

0.78 minutes

0.60 minutes

0.36 minutes

two trains 140 metres and 120 metres are running in the same direction with speeds 40 kmph and 60 kmph respectively. in what time will the faster train pass the slower one?

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