A putt putt course offers a deal that when you purchase 10 rounds you get 1 round for free. If you played a total of 35 rounds, how many rounds did you purchase?
Rounded off to the nearest full number, it would be 3 rounds but that wouldn't make sense because 3 x 10 is 30 sooooo the answer would be 3.5 meaning you paid 1 fifth the price of 10 rounds.
