BbpHir3
Active Member
Mr Lau usually drives his car from his house to his house to his girlfriend's house. His average speed is 80km/h. On a particular day when he is not feeling well, he decides to drive at a much slower speed. His average speed for that particular day is 60km/h. On that day, he arrives at his girlfriend's house 15 minutes later than usual. How far away is Mr Lau's house from his girlfriend's house?
I have no idea how to solve this question.. Dunno how to start..
I have no idea how to solve this question.. Dunno how to start..