| | | | | | | | | | 1 | | | 2 | 3 4 | 5 6 | 3 | | | | | ① 0.1% 1 2 | 3 5 ② 10 20 | 1 2 3 5 ③ 1% 2% | ④ 5% | 500 50 100 | 4 12 1 2 2 | 3 10 20 | 2 3 | | | |