Katerina's jaw nearly dropped off.
She held up her phone screen for Chu Long to see, and Chu Long's jaw nearly dropped off too.
"How the fuck is that possible?" Chu Long swore. "Are you kidding me? He came up with the answer in ten minutes?"
"That's absurd. Yuan Tiangang is your student. Does he like making outrageous jokes?" Katerina asked in shock.
"He's a pretty serious kid. He's never joked around!" Chu Long's brows knitted into a knot. "But this is impossible! How could it be? We spent half a month working on it. Could we really be inferior to him after ten minutes?"
The two of them were deeply horrified!
Goosebumps rose all over their bodies and refused to subside. Every hair stood on end!
"Could there have been a mistake?" Chu Long suddenly had an idea. "Maybe Song He didn't actually figure it out and just hurriedly gave them a wrong answer?"
Katerina's eyes lit up. She immediately typed a question to Yuan Tiangang: "Are you sure the answer Dean Song gave you is correct? These four problems absolutely can't be solved within ten minutes!"
Yuan Tiangang replied instantly: "I'm on my way to the laboratory. I should be able to verify whether the answer is correct in about an hour."
Katerina: "Tell me as soon as you have the results."
Yuan Tiangang: "Okay, Teacher!"
Katerina put down her phone and exchanged a look with Chu Long. They were still in a state of immense shock, their scalps tingling, though they were somewhat better than before. Perhaps it really was a wrong answer. That would at least be psychologically acceptable.
Katerina turned toward Xie Kefu, who was wearing large headphones by the door, and waved to him.
Xie Kefu raised his brows and took off his headphones.