The I.Sc lecture theatre of a college is 40 ft wide and has door at a corner.A teacher enters t 12.00 noon through the door and makes 10 rounds along the 40 ft wall back and forth during the eriod and finally leaves the class - room at 12.50 p.m. through the samedoor. compute his average speed and average velocity.
Two teachers are interviewing top 6 students in FTRE exam, in two different subjects starting at the same time. Each teacher interviews for 15 minutes, the number of ways in which interview can be scheduled is