CHS alumnus Neil Luo, who graduated in 2015, was one of 54 students worldwide to achieve a perfect score on the 2015 AP Microeconomics exam.

Luo, who now attends Duke University, received the maximum score possible on both the multiple choice and free response sections of the exam.

“I was very excited for him,” AP Economics teacher Monica Malanoski said. “I set it as a goal after two of my students got perfect scores a few years ago. I challenge them. If anyone in the world can get it, why can’t my students get it?”