Soal Tes Potensi Akademik seleksi Magang Kerja di Pertamina Hulu Rokan

Summary

This educational video provides a detailed explanation of various types of numerical reasoning problems commonly found in academic ability tests. It covers number sequences, basic arithmetic operations, and problem-solving techniques, with practical examples for each type. The video also includes tips for practicing these types of questions, aiming to enhance accuracy and efficiency in solving problems. The presenter discusses common patterns such as numerical progression, multiplication, and division, offering clear step-by-step solutions. Throughout, viewers are encouraged to practice regularly to improve their problem-solving skills for upcoming academic tests.

Takeaways

• 😀 Understand and practice solving numerical sequences by identifying patterns in number differences or ratios.
• 😀 Regular practice with number sequences, like identifying patterns of addition or multiplication, improves speed and accuracy during tests.
• 😀 For arithmetic problems, ensure to break down complex operations step by step, especially when dealing with mixed operations like addition, subtraction, and multiplication.
• 😀 Story problems often involve real-life situations, like calculating quantities or adjusting for changes in parameters. Familiarize yourself with typical setups to solve them more easily.
• 😀 Learn how to apply the principle of proportionality: **direct proportionality (senilai)** occurs when two values increase or decrease together.
• 😀 Understand **inverse proportionality (berbalik nilai)**, where an increase in one quantity leads to a decrease in the other, and vice versa.
• 😀 Consistently practicing helps improve your problem-solving efficiency, especially in handling multi-step problems.
• 😀 Use the method of trial and error when facing unclear patterns, and gradually find the correct mathematical operations that fit the problem.
• 😀 Master basic operations such as multiplication, division, addition, and subtraction, as these form the foundation of many test questions.
• 😀 Focus on understanding patterns in both simple and complex number sequences, whether they are based on constant additions or multiplications.
• 😀 Watch out for tricky question setups, such as when numbers are interspersed with different operations or when there is a significant jump in values. These require more careful analysis.

Q & A

What is the primary focus of the video script?

The video focuses on helping viewers prepare for the 'Tes Potensi Akademik' (Academic Potential Test) by explaining how to solve different types of numerical pattern questions and providing strategies for practicing and improving test-taking skills.

What types of questions are covered in the 'Tes Potensi Akademik'?

The test covers several types of questions, including numerical patterns, reasoning, spatial reasoning, verbal reasoning, English language skills, and Microsoft Office/email tasks.

What strategy is recommended for solving numerical pattern problems in the video?

The video recommends identifying the pattern in the given number series, looking for common operations (addition, subtraction, multiplication, division), and practicing regularly to improve speed and accuracy in identifying patterns.

How is the numerical series '7, 13, 20, 28, 37' solved in the video?

The series is solved by recognizing the increasing addition pattern (7 + 6 = 13, 13 + 7 = 20, 20 + 8 = 28, 28 + 9 = 37). The next numbers are found by continuing the pattern: 37 + 10 = 47 and 47 + 11 = 58.

What is the approach for solving a mixed arithmetic and multiplication pattern, such as '10, 7, 14, 11, 22'?

The solution involves identifying that the pattern alternates between subtraction and multiplication: subtracting 3 (10 - 3 = 7), multiplying by 2 (7 * 2 = 14), subtracting 3 (14 - 3 = 11), and multiplying by 2 (11 * 2 = 22). The next numbers are found by continuing this pattern.

How does the video suggest solving the problem '24, 50, 28, 45, 32, 40'?

The problem is solved by identifying two alternating patterns: adding 4 (24 + 4 = 28, 28 + 4 = 32) and subtracting 5 (50 - 5 = 45, 45 - 5 = 40). The missing numbers are 32 + 4 = 36 and 40 - 5 = 35.

What is the key concept behind solving the fraction and decimal operations in the video?

The key concept is converting decimals to fractions and performing operations in the correct order (multiplication/division first, then addition/subtraction), simplifying fractions when possible, and using reciprocal values for division.

What kind of comparison problem is explained in the video, and how is it solved?

The video explains two types of comparison problems: 'direct' (or 'proportional') comparisons, where both quantities increase or decrease together, and 'inverse' (or 'inverse proportional') comparisons, where one quantity increases while the other decreases. The formulas for solving these involve cross-multiplying in direct comparisons and inverse operations in inverse comparisons.

How is the worker problem with '25 workers in 15 days' explained and solved?

This problem is solved by using the inverse proportionality method. To finish the project 10 days earlier (in 5 days), the number of workers must be increased. The solution uses the formula (5 * x) = (15 * 25), solving for x, resulting in 75 workers required. Since 25 workers are already employed, 50 more workers need to be added.

What is the solution to the fuel consumption problem, where a car uses 20 liters for 140 km, and the question asks for fuel for 280 km?

This is a direct proportionality problem, where fuel usage is directly related to the distance traveled. The solution involves setting up the proportion (20 liters / 140 km) = (x liters / 280 km), solving for x, which gives the answer as 40 liters.