
自我修炼排列与组合
Authored by 陈长夷师-CHAN YEE
Mathematics
11th - 12th Grade
Used 3+ times

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10 questions
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1.
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3 mins • 1 pt
用四种颜色涂右图的面具,每个区域只涂一种颜色,相邻区域不能同色,问有多少种涂法?
2.
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1 min • 1 pt
一间房子有六个进出口的门,一人由不同的门进出的方法有__________种。
3.
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2 mins • 1 pt
一间房子有六个进出口的门,两人从不同的门进、不同的门出的方法有________种。
4.
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1 min • 1 pt
一间房子有六个进出口的门,两人从不同的门进、不同的门出,且不从任何一人进入的同一个门出的方法有_________种。
5.
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3 mins • 1 pt
已知吉隆坡的车牌由前面两个英文大写字母、中间一到四个阿拉伯数字及后面一个大写英文字母组成。假设首个英文字母必须是W,其它字母不能用I、O或Z,数字的排列不能出现三个或四个连续的4,问共有多少个可用的车牌号码?
6.
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5 mins • 1 pt
在校内羽球比赛中,某班女队派出四名单打球员及三对双打球员出赛,参与每轮由三场单打及两场双打组成的比赛。某天进行比赛前,经体育委员判断,其中两位单打球员及一对双打球员的状态最好,队长决定安排至少一位状态好的单打球员及双打球员出赛,问共有多少种安排五场比赛的方法?
7.
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3 mins • 1 pt
有一个2行x3列的表,在这个表中填入a, b, c, d, e, f, g, h八个字母,每一格只填一个字母且不得重复。若母音字母(即a, e, i, o, u)必须填在同一行或同一列,问共有多少种不同的填法?
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