Question

In how many ways can $4$ boys and $3$ girls be arranged in a row so that no two girls are together?

score 2.9k · Answer 1 · 2018-03-14 19:26:23

2.9k

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In how many ways can $4$ boys and $3$ girls be arranged in a row so that no two girls are together?

Published on 14 Mar 2018 - 19:26

score 985 · Answer 2 · 2026-04-03 10:30:24

985

Views

In a Zener card test using a 25 -card pack and no replacement, what is the expected score if we try to minimise correct guesses?

Published on 03 Apr 2026 - 10:30

score 33 · Answer 3 · 2018-03-14 23:04:35

33

Views

$4$ rounds of golf in $2$ groups of $3$

Published on 14 Mar 2018 - 23:04

score 611 · Answer 4 · 2026-04-03 17:45:35

611

Views

How many number of bracelets of length $n$ with black-white beads?

Published on 03 Apr 2026 - 17:45

score 4.3k · Answer 5 · 2018-03-15 02:58:42

4.3k

Views

Probability question regarding pairs of gloves

Published on 15 Mar 2018 - 2:58

score 243 · Answer 6 · 2026-03-26 01:10:34

243

Views

Are there discussion sites online for university level mathematics?

Published on 26 Mar 2026 - 1:10

score 275 · Answer 7 · 2026-03-25 23:50:52

275

Views

Probability when choosing over more combinations

Published on 25 Mar 2026 - 23:50

score 67 · Answer 8 · 2026-03-25 12:52:09

67

Views

Proving Taylor's expansion of sin x

Published on 25 Mar 2026 - 12:52

score 53 · Answer 9 · 2026-03-29 15:33:01

53

Views

Combinatorial proof or interpretation of Bezout relation between $(1-p)^n$ and $p^m$?

Published on 29 Mar 2026 - 15:33

score 41 · Answer 10 · 2018-03-15 11:52:01

41

Views

combinatorics; possibilities of product

Published on 15 Mar 2018 - 11:52

score 68 · Answer 11 · 2026-03-25 15:46:01

68

Views

Approximate formula involving binomial coeffcients

Published on 25 Mar 2026 - 15:46

score 337 · Answer 12 · 2026-03-25 02:53:27

337

Views

27 squares of side $1$ inside a circle of radius $2$: Show that three squares share an interior point.

Published on 25 Mar 2026 - 2:53

score 379 · Answer 13 · 2026-03-25 11:08:13

379

Views

Counting through generating functions

Published on 25 Mar 2026 - 11:08

score 107 · Answer 14 · 2026-03-25 23:51:04

107

Views

Different combinations without replacement and indistinguishable objects

Published on 25 Mar 2026 - 23:51

score 384 · Answer 15 · 2018-03-15 15:59:44

384

Views

Number of arrangements of four blue, three green, and two red balls in which no two blue balls are adjacent

Published on 15 Mar 2018 - 15:59

List Question

In how many ways can $4$ boys and $3$ girls be arranged in a row so that no two girls are together?

In a Zener card test using a 25 -card pack and no replacement, what is the expected score if we try to minimise correct guesses?

$4$ rounds of golf in $2$ groups of $3$

How many number of bracelets of length $n$ with black-white beads?

Probability question regarding pairs of gloves

Are there discussion sites online for university level mathematics?

Probability when choosing over more combinations

Proving Taylor's expansion of sin x

Combinatorial proof or interpretation of Bezout relation between $(1-p)^n$ and $p^m$?

combinatorics; possibilities of product

Approximate formula involving binomial coeffcients

27 squares of side $1$ inside a circle of radius $2$: Show that three squares share an interior point.

Counting through generating functions

Different combinations without replacement and indistinguishable objects

Number of arrangements of four blue, three green, and two red balls in which no two blue balls are adjacent

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