IFRN 2021: Complete Math Correction (Selection Exam) | Step-by-Step - PART II

Опубликовано: 24 Май 2026
на канале: Obizu
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In this video, I present the detailed and commented solution to questions 31 to 40 of the Mathematics section of the IFRN 2021 Selection Exam. If you are preparing to enter an integrated technical course, this review is essential to understand the style of the exam board and the content that is most frequently tested!

What you will learn in this lesson:
Commented solution to questions 31 to 40.
Tips for interpreting mathematical problems.
Review of key content: Arithmetic, Algebra (equations and systems), Plane Geometry and Percentage.
How to manage your time during the objective test.
Don't forget to subscribe to the channel for more solutions to previous IFRN exams and review lessons!

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