Introduction:
When creating a study plan, it is important to allocate time effectively to different topics. Challenging topics often require more time and effort to understand and master. In this response, we will discuss the benefits of allocating more time to challenging topics in a study plan.

Benefits of allocating more time to challenging topics:

1. Deep understanding:
- Challenging topics often require a deeper understanding to fully grasp the concepts and principles involved.
- Allocating more time to these topics allows for a thorough exploration and analysis, leading to a more profound understanding of the subject matter.

2. Strengthen weak areas:
- Challenging topics are often areas where students struggle or have weaker foundations.
- By dedicating more time to these topics, students can focus on strengthening their knowledge and skills in these areas, ultimately improving their overall performance.

3. Critical thinking and problem-solving:
- Challenging topics often involve complex problems or scenarios that require critical thinking and problem-solving skills.
- Allocating more time to these topics allows students to engage in higher-order thinking processes, develop analytical skills, and enhance their ability to solve complex problems.

4. Retention and long-term learning:
- Spending more time on challenging topics helps in consolidating the learned material and promotes long-term retention.
- By revisiting these topics multiple times and applying them in various contexts, students can reinforce their understanding and retain the information for a longer duration.

5. Score improvement:
- Challenging topics are often weighted heavily in exams and assessments.
- By allocating more time to these topics, students can improve their performance in these areas and potentially increase their overall scores.

Conclusion:
Allocating more time to challenging topics in a study plan has numerous benefits, including a deeper understanding of the subject matter, strengthening weak areas, developing critical thinking skills, promoting long-term retention, and improving scores. By dedicating sufficient time and effort to these topics, students can enhance their overall learning experience and excel academically.