Hi,
I want to prepare Exam which will be like:
1. A Exam of 30 or 50 questions
2. all 30 or 50 questions will comes from four different categories of questions.
3. Based on the percentage set up the questions will come form different category randomly. Example from category A i want to have 10% from B 40% from C 55% and from D 5%
Can you please help me how can I achieve this in Moodle?