This Video includes the Concepts of Relative Speed, Average Speed and questions related to Trains.
This video is created by Mr. Raj Kumar Jha who has been training students for various entrance exams like CAT, CLAT etc for the last 18 years. He also holds a distinction of Scoring 100 percentile in CAT exam for 5 times and 99.9 percentile above in CAT for a total of 12 times.
source
