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- 精华
- 0
- 积分
- 1060
- 经验
- 1060 点
- 威望
- 105 点
- 金钱
- 105 ￥
- 魅力
- 105
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求一道GWD31套的数学题详解
| A certain club has 20 members.What is the ratio of the number of 5-member committees that can be formed from the members of the club to the number of 4-member committees that can be formed from the members of the club?（答案：16 to 5) |
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