| | | | | | 5. | | | | | 6. | | | | | ︽ | ︾ 90 100 60 | 60 50 30 50 | 25 60 90 | 15 | 7. | | | | | 30 | | | | | 1% | | | | | | | 8. | | | | | | 0.5% | | |