4minute's Sohyun, INFINITE's Sunggyu, and B.A.P's Bang Yong Guk were revealed to be one of the smartest among the 30 idols featured on the latest episode of 'Infinity Challenge'.

MC Yoo Jae Suk asked 4minute, "Which member did the best in school?", and leader Jihyun pointed to maknae Sohyun. Sohyun surprised the other idols by revealing, "I ranked #4 in my class." Yoo Jae Suk then asked the 30 idols, "Is there anyone here who achieved higher than fourth place?"

Sunggyu raised his hand and shared, "Although it's weird to say this about myself, I achieved #2 out of my entire school." Yoo Jae Suk responded, "You must have been very good at studying", to which Sunggyu hilariously answered, "That's right."

Yoo Jae Suk raised the bar higher and asked, "Is there anyone who achieved higher than 2nd place?", to which Bang Yong Guk raised his hand and shared, "I placed #1 among 800 students during my 2nd year of high school", impressing everyone on set.

During the idol special, 30 idols split into 11 teams with each 'Infinity Challenge' member becoming their teacher. They also received special lessons from the cast, who lectured in their own individual way to teach them Korean history.

Watch the full episode below!






Source + image(s): Newsen via Nate