| | | | | | | | | | | | 1. 1 3 | | | | | | | 2. 3 7 | | 7 | 85% | | | | | 3. 7 10 | | | | 4. 10 20 | | | 50 75 | 30 60 100 60 90 | 200 90 120 | 250 | 5. 90 120 | | | | | | 7 10 | | |