A typical tournament of tennis has 4 rounds. There are 8 games in the first round, 4 in the second round, 2 in the third round and 1 during the finals. If each game requires new tennis balls, and on average each game uses 5 cans of tennis balls, how many tennis balls in total are used at the end of the tournament if each can has 3 tennis balls?
There are a total of 8+4+2+1 = <<8+4+2+1=15>>15 games of tennis in a typical tournament
If 1 game uses 5 cans of tennis balls, then 15 games would use 15*5 = 75 cans of tennis balls
If 1 can of tennis balls has 3 balls, then 75 cans would have <<75*3=225>>225 balls
#### 225