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排列比赛

Authored by chia tl

Mathematics

9th - 12th Grade

Used 3+ times

排列比赛
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17 questions

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1.

FILL IN THE BLANK QUESTION

1 min • 1 pt

七个人排队,要求甲一定要夹在乙和丙之间,有几种排法?

2.

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1 min • 1 pt

今天会举行五场羽球赛,甲要对这五场球赛进行预测,问共有几种预测

3.

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1 min • 1 pt

求20000到70000之间有多少个偶数,数字不可重复。比如35698

4.

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1 min • 1 pt

现在有10个空位,甲乙丙丁四人入座,要求他们要隔开,几种坐法?

5.

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1 min • 1 pt

丢五个不同的dice,要求只有一个dice显示“6”,问有几种情况?比如:36221

6.

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1 min • 1 pt

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7.

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1 min • 1 pt

将cocoon一字排列,要求两个o在一起,另一个o隔开,比如:occoon, 有几种排法

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