In how many ways can $6$ boys and $6$ girls be seated at $3$ groups of four desks if there are two adjacent boys and two adjacent girls in each group?

score 784 · Answer 11 · 2026-03-31 14:29:10

784

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The number of positive integers of 5 digits such that each digit is 1, 2 or 3, and all three of the digits appear atleast once.

Published on 31 Mar 2026 - 14:29

score 47 · Answer 12 · 2026-03-31 14:32:55

47

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Inviting your friend.

Published on 31 Mar 2026 - 14:32

score 805 · Answer 13 · 2026-04-06 05:59:36

805

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How do I prove the sum of the total number of permutation inversions

Published on 06 Apr 2026 - 5:59

score 76 · Answer 14 · 2026-03-26 08:02:23

76

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Number of ways to form 4 lettered word out of the letters of MATHEMATICS

Published on 26 Mar 2026 - 8:02

score 118 · Answer 15 · 2026-03-25 12:31:57

118

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Permutations in $S_9$ with length $4,3,2$.

Published on 25 Mar 2026 - 12:31

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In how many ways can $6$ boys and $6$ girls be seated at $3$ groups of four desks if there are two adjacent boys and two adjacent girls in each group?

The number of positive integers of 5 digits such that each digit is 1, 2 or 3, and all three of the digits appear atleast once.

Inviting your friend.

How do I prove the sum of the total number of permutation inversions

Number of ways to form 4 lettered word out of the letters of MATHEMATICS

Permutations in $S_9$ with length $4,3,2$.

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