A 500 m long train passes a platform and a pole in 40 seconds and 25 seconds respectively. Find the length of platform in metres and speed of train in km/hr.
1
300 m and 20 km/hr
2
300 m and 10 km/s
3
300 m and 60 m/hr
4
300 km and 72 km/hr
5
300 m and 72 km/hr