1	Arun can walk up in a moving escalator (upwards) in 30 s. He can walk down this moving &ls... CAT Quantitative Ability Arithmetic Time, Speed and Distance Relative Speed
2	Two trains are moving in opposite directions at 60 km/hr and 90 km/hr. Their lengths are 1.10 k... CAT Quantitative Ability Arithmetic Time, Speed and Distance Relative Speed