- AOdisha
- BBihar
- CMadhya Pradesh
- DMaharasthra
Speed =(50 x 5/18) m/sec = 125/9 m/sec
length of the train be x meters and its
Speed = (72 × 5/18 ) m/sec = 20 m/sec
Relative speed = 45 + 30 = 75 km/hr.
Let the length of each train be x m.