1. **Problem Statement:** Daniel has 10 subjects and needs a personal revision timetable. 2. **Step a: Making the Timetable** - Assume Daniel studies each subject equally. - Let's say he studies each subject once per day. - A week has 5 school days (Monday to Friday). - So, timetable will have 10 subjects × 5 days = 50 lessons per week. 3. **Step b: Total Number of Lessons per Week** - Total lessons = number of subjects × days per week - $$10 \times 5 = 50$$ lessons per week. 4. **Step c: Total Time Spent in Class per Day** - Assume each lesson is 1 hour long. - Number of lessons per day = total lessons per week ÷ days per week - $$\frac{50}{5} = 10$$ lessons per day. 5. **Step c (i): Time in Hours per Day** - Each lesson is 1 hour, so total hours per day = 10 hours. 6. **Step c (ii): Time in Minutes per Day** - 1 hour = 60 minutes - Total minutes per day = 10 hours × 60 minutes - $$10 \times 60 = 600$$ minutes per day. **Final answers:** - Timetable: 10 subjects × 5 days = 50 lessons per week. - Total lessons per week: 50 - Total time per day: 10 hours or 600 minutes.