8-21
Giorgio's research revealed the following: An average of 5 balls were being lost each game. Despite some seasonal variation, an average of 1000 people played at the club every month. An average of 5000 balls a month, so 60000 a year were being lost. Around 40% of the balls were lost in the bushes. But recovering these was not worth the effort. However, it was possible to recover all the balls that fell into the water. So it was possible to recover 3000 balls a month and so 36000 a year.





