Did She Get It Right By Coincidence?

"That's why I said she was impressive," replied the Secretary-General with a profound look in his eyes.

The Chairman went quiet for a few seconds before he continued to read the test sheet. He especially focused on the tough physics question, which Zhang had personally prepared.

A long while later, the Chairman smiled with great admiration on his face while leaning into his seat.

He sighed and said, "She's genuinely impressive. Just look at how ingeniously the equation was answered. There isn't a single unnecessary step in it. Also, this method of solving the question is very novel. It's even simpler than the answer that Zhang gave us."

Although the Secretary-General was not an expert in physics, he saw the excellent logic which the student had used, after he heard the Chairman say so.