如图,有A、B两个转盘,其中转盘A被分成4等份,转盘B被分成3等份,并在每一份内标上数字.现甲乙两人同时分别转动其中一个转盘,转盘停止后(当指针指在边界线上时视为无效,重转),若将A转盘指针指向的数字记为x,B转盘指针指向的数字记为y,从而确定点P的坐标为P(x,y).记S=x+y| 12 |
| x |
y x |
2 | 4 | 6 |
| 1 | (1,2) | (1,4) | (1,6) |
| 2 | (2,2) | (2,4) | (2,6) |
| 3 | (3,2) | (3,4) | (3,6) |
| 4 | (4,2) | (4,4) | (4,6) |
| 12 |
| x |
| 2 |
| 12 |
| 1 |
| 6 |
| 4 |
| 12 |
| 1 |
| 3 |
| 8 |
| 12 |
| 2 |
| 3 |
y x |
2 | 4 | 6 |
| 1 | (1,2) | (1,4) | (1,6) |
| 2 | (2,2) | (2,4) | (2,6) |
| 3 | (3,2) | (3,4) | (3,6) |
| 4 | (4,2) | (4,4) | (4,6) |
| 12 |
| x |
| 2 |
| 12 |
| 1 |
| 6 |
| 4 |
| 12 |
| 1 |
| 3 |
| 8 |
| 12 |
| 2 |
| 3 |