If a 500 feet long crosses a platform which is 700 feet long in 10s, then what is its speed (in ft/s)?

A train 200 m long passes a platform 100 m long in 10 seconds. What is the speed of the train?

A 240-metre long train crosses a platform twice its length in 2 minutes . What is the speed of the train ?

A train 50 metres long passes a platform 100 metres long in 10 seconds. The speed of the train in metres/second is:

A 210 meres long train crosses a platform of equal length in 20 seconds. What is the speed of the train ?

A 150 m long train crosses a platform in 15s. What is the length of the platform if the speed of the train is 90 km/h?