Two trains starting at the same time from 2 statins 400 km apart and going in opposite direction corss each other at a distacne of 240 km from one of the stations. What is the ratio of their speeds?

প্রশ্নঃ Two trains starting at the same time from 2 statins 400 km apart and going in opposite direction corss each other at a distacne of 240 km from one of the stations. What is the ratio of their speeds?