Two trains having lengths 120 m and 100 m running in the opposite directions with velocities 40 km/h and 50 km/h. In what time they will completely cross each other?

Two trains 120 m and 100 m in length are running in opposite directions with velocities 43 km h^-1 and 29 km h^-1 . In what time they will completely cross each other?

Two train 100 m and 89 m in length are running in opposite directions with a velocity 40 km/hr and 30 km/hr. At what time they will completely cross each other.

Two trains 120 m and 80 m in length are running in opposite directions with velocities 42 km h^(-1) and 30 kmh^(-1) . In what time they will completely cross each other?

Two trains 120m and 100 m in length are tunning in opposite directions with velocityes 42 km h^(-1) and 30 km h^(-1) In what tiem they will completely cross each other ?

Two trains 121 m and 99 m in length are running in opposite directions with velocities 40 km h^(-1) and 32 km h^(-1) . In what time they will completely cross each other?

Two trains 121 m and 99 m in length are running in opposite directions with velocities 40 km h^(-1) and 32 km h^(-1) . In what time they will completely cross each other?

Two trains 90 m and 120 in length are running in opposite directions on parallel tracks with velocitye 72 km//h and 36 km//h . In what tiem they will complerely cross each other ?

two trains A and B,each of length 100 m, in length are running in opposite driection on parallel tracks with velocities 40 kmh ^(-1) and 32 kmh^(-1) . In what time will they completely cross each other ?

The length of Lucknow mail is 120 m and that of Punjab mail is 80 m. These two trains are running in the opposite direction with velocities of 40 km/h and 50 km/h respectively. The time taken by them to cross each other is :

The length of Lucknow mail is 120 m and that of Punjab mail is 80 m These two trains are runing in the opposite direction with velocities of 40 km/h and 50 km/h respectively.The time taken by them to cross each other is: