[Forum Event] Answer Interesting Math Question And Win Gold!

COTK-Chen

Deal all, Forum event is coming again! Do you like math? Or are u good at math? This time we have prepared a problem about math for you. You need to write down the correct reasoning process and answer according to the following information.

Question:
Can you help Mike figure out how many times he has played?
Information:
Mary, Paul, Candy, David and Mike are playing a chess game. Every two people must play one time each other. Up to now Mary has played four times, Paul has played three times, Candy has played two times and David has played one time. But Mike forgets that how many times he has played.
Duration: Ends on Sept.10th.
Servers: All Servers
Requirements:
1. You need to write the correct reasoning process and answer .
2. Your IGN and server
What's your prize:
Players with correct answer will be rewarded with 50 gold.
Note:
1.The rewards will be released on Sept.11th.
2.If you do not post your information under forum event page, rewards will not be sent to your account.
3.Please read the requirements carefully or else you'll lose the chance to be rewarded
4.No abusive or rude remarks allowed in this event
5.The final explanation is reserved by COTK