The question in the 2024 high school graduation exam in Mathematics that Professor Do Duc Thai (lecturer at Hanoi National University of Education) mentioned has the following content:

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According to the high school graduation exam regulations, the Math subject consists of 50 multiple choice questions with a time limit of 90 minutes. Thus, on average, each question, including question 44, will take 1.8 minutes to complete (meaning that candidates have an average of less than 2 minutes to solve each question). However, candidates with good academic performance can solve easy questions quickly and spend more time on this question.

Sharing with VietNamNet, a math lecturer at a pedagogical university said that this was actually a very difficult question on the exam.

“Question 44 of the above exam requires practice to solve quickly. It is really difficult to solve the question purely within 5 minutes,” he said.

Another doctor shared: “With question 44, if you solve it sequentially, it will take a lot of time, but the test is multiple choice so students can deduce and eliminate to find the answer faster. However, I personally do not encourage this method, because in reality, students cannot solve it correctly.”

The answer to question 44 is option B.

In the 2024 high school graduation exam, out of a total of 1,045,643 candidates taking the Math exam, no candidate achieved a score of 10. The average score was 6.45; the median score was 6.8.

Source: https://vietnamnet.vn/cau-hoi-o-de-thi-tot-nghiep-gay-kho-cho-giao-su-toan-co-noi-dung-ra-sao-2389880.html