[" 20.Train "A" leaves Ludhiana for Deihiat "11" am nunning "],[" at a specd of "60km/hr" .Train "vec B" leaves ludthiana for "],[" Delhi by the säme route at "2pm" on the same day "],[" running at a speed of "72km/hr" .At what tinier will "],[" the two trains meet each other? "]

Train A leaves Ludhiana for Delhi at 11 a.m. running at the speed of 60 km/hr. Train B leaves Ludhiana for Delhi by the same route at 2 p.m. on the same day, running at the speed of 72 km/hr. At what time will the two trains meet each other? 2 a.m. on the next day 5 a.m. on the next day 5 p.m. on the next day None of these

A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?

Two trains 100 metres and 120 metres long are running in the same direction with speed of 72km/hr and 54km/hr. In how much time will the first train cross the second?