The 'difficult' question made the contestant of Road to Olympia lose

In the third quarter broadcast of the 15th year of Road to Olympia, a question appeared that easily confused the contestants.

The question is as follows: "A book is 20% off, how much % must it increase in price to get its old value?".

With simple facts, many people will think that the % decrease will correspond to the % increase to reach the original value. However, in a contest of intelligence, the answer is not that simple.

This difficult question made the candidate "freeze" and unable to give an answer.

"Difficult" question. (Screenshot)

Seemingly easy but actually difficult for candidates, this question has become a topic of interest to many people, who want to conquer the answer.

If you figure it out in a short time, you are definitely a smart person. Comment your results and see how many people think the same way.

Hieu Lam

Source: https://vtcnews.vn/cau-hoi-kho-do-khien-thi-sinh-duong-len-dinh-olympia-chiu-thua-ar904088.html