Robert and David played several golf matches against each other in a week. They played for a pizza at each match, but no pizzas were purchased until the end of the week. If Robert and David had the same number of wins at any time, those pizzas were canceled. Robert won four matches (but no pizzas), and David won three pizzas. How many rounds of golf were played?
REVEAL THE ANSWER
11 Explanation: David won seven matches — four to cancel out Robert’s four wins and three more to win the pizzas.