Factors considered when determining the weightage of JAMB exam:

1. Number of Questions:
The number of questions in the JAMB exam plays a significant role in determining its weightage. Generally, the more questions there are, the higher the weightage of the exam.

2. Difficulty Level:
The difficulty level of the questions is another factor considered when determining the weightage of the JAMB exam. If the questions are challenging and require in-depth knowledge and critical thinking, the exam is given a higher weightage.

3. Subject Distribution:
The subject distribution in the JAMB exam also influences its weightage. The exam typically covers various subjects such as English, Mathematics, Physics, Chemistry, Biology, and others. The weightage given to each subject depends on its importance and relevance to the field of study.

4. Curriculum Coverage:
The extent to which the JAMB exam covers the curriculum is also taken into account when determining its weightage. If the exam covers a wide range of topics and concepts from the curriculum, it is considered to be more comprehensive and thus given a higher weightage.

5. Time Allotted:
The time allotted for the JAMB exam is an important factor in determining its weightage. If the exam is designed to be completed within a limited time frame, it indicates that the questions are challenging and require efficient time management skills. Such exams are often given a higher weightage.

6. Marking Scheme:
The marking scheme of the JAMB exam is another factor considered when determining its weightage. If the exam follows a strict marking scheme with limited room for subjectivity, it is given a higher weightage as it ensures fairness and accuracy in the evaluation process.

7. Overall Performance:
The overall performance of the candidates in the JAMB exam is also taken into account. If the majority of the candidates perform well and achieve high scores, it indicates that the exam was not challenging enough and may result in a lower weightage.

In conclusion, the weightage of the JAMB exam is determined by considering factors such as the number of questions, difficulty level, subject distribution, curriculum coverage, time allotted, marking scheme, and overall performance of the candidates. These factors ensure that the exam accurately assesses the knowledge and skills of the candidates and provides a fair evaluation.