“How is it possible that I got all of the answers wrong? You must be saying that in order to win the bet! There’s no other reason for that!” Yang Wei glared at Zu An angrily. He was confident that he should have gotten at least ten questions correct. He could never accept that he had actually gotten everything wrong.

“Indeed! How could Teacher Yang possibly get everything wrong? He’s our academy’s arithmetic teacher!”

“Zu An is going too far, lying just to win the bet. It only shows how despicable he is as a person!”

… 

Zu An didn’t lose his temper despite all of the criticisms directed at him. Instead, he raised the paper Yang Wei had just completed up high and said, “Very well, let me enlighten you on your mistakes then. Look at the first question. The right answer is 2 and 2, and yet you wrote 10 and 15. You must have just made a random guess, hoping that you’d somehow get it right.”

Yang Wei’s face heated up in embarrassment. It was true that he had guessed two random numbers. He’d simply gotten more and more confused as he thought about the problem, and eventually gave up. However, there was no way he was going to admit to it. “Your question is simply illogical. Given these conditions, how can anyone possibly deduce the answer?”

“Oh, is that so?” Zu An shook his head disdainfully. 

“Since you don’t understand it, allow me to enlighten...