Why are tennis points scored as 15, 30, and 40 instead of 1, 2, and 3?

Answer 1

Tennis scoring uses 15, 30, and 40 instead of 1, 2, and 3 because it is believed to have originated from a clock face, where the hand would move from 0 to 15, then 30, and finally 45 (which was later shortened to 40). This system made it easier to keep track of scores and is still used today in traditional tennis scoring.