# What is platform length?

A train crosses a platform in 30 second travelling with a speed of 60 km/hour. If the length of the train be 200 metre, then the length of a platform is___:

- 320 metres
- 300 metres
- 280 metres
- 250 metres

A train crosses a platform in 30 second travelling with a speed of 60 km/hour. If the length of the train be 200 metre, then the length of a platform is___:

- 320 metres
- 300 metres
- 280 metres
- 250 metres