Puzzle - Rate
At the local F1 race track, Eddie was testing the latest car.
During the eight test laps, he managed to average the first two laps at 100mph, the next two laps at 102mph, the next two laps at 140mph and the last two laps at 150mph.
What was his average speed for the entire 8 laps?
[Ref: ZBIP] © Kevin Stone