Question

From 4 red, 2 green and 3 white balls, how many selections consisting of 7 balls are possible, if each colour must be represented at least twice?

score 54 · Answer 1 · 2018-02-06 16:07:51

54

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From 4 red, 2 green and 3 white balls, how many selections consisting of 7 balls are possible, if each colour must be represented at least twice?

Published on 06 Feb 2018 - 16:07

score 599 · Answer 2 · 2018-02-07 11:49:10

599

Views

How many numbers from $1$ to $99999$ have the sum of the digits $= 15$?

Published on 07 Feb 2018 - 11:49

score 429 · Answer 3 · 2018-02-07 13:49:43

429

Views

Finding the probability that the first ace appears on the $(n + 1)$st draw

Published on 07 Feb 2018 - 13:49

score 89 · Answer 4 · 2026-03-25 09:24:52

89

Views

How can I start this sum

Published on 25 Mar 2026 - 9:24

score 164 · Answer 5 · 2026-03-25 06:07:22

164

Views

Hamming Distance

Published on 25 Mar 2026 - 6:07

score 35 · Answer 6 · 2018-02-08 12:16:57

35

Views

Combinations from two different groups

Published on 08 Feb 2018 - 12:16

score 2.6k · Answer 7 · 2018-02-08 14:09:07

2.6k

Views

how to calculate number of combinations of 3 letters and 5 numbers

Published on 08 Feb 2018 - 14:09

score 44 · Answer 8 · 2018-02-08 19:37:50

44

Views

Count of Total Number of Combinations of Vector Elements

Published on 08 Feb 2018 - 19:37

score 1.7k · Answer 9 · 2018-02-09 02:25:23

1.7k

Views

How Many Combinations Are Possible (using 5 letters, groups of 12)?

Published on 09 Feb 2018 - 2:25

score 73 · Answer 10 · 2026-03-13 08:50:30

73

Views

Binomial Notation Expansion

Published on 13 Mar 2026 - 8:50

score 80 · Answer 11 · 2018-02-09 15:49:56

80

Views

What is the number of all the possible passwords when someone say(verbally) password is 12345678.

Published on 09 Feb 2018 - 15:49

score 290 · Answer 12 · 2018-02-11 01:49:48

290

Views

minimum number of combination-pairs, without replacement, to ensure a value appears

Published on 11 Feb 2018 - 1:49

score 473 · Answer 13 · 2018-02-11 14:15:40

473

Views

Game of tickets

Published on 11 Feb 2018 - 14:15

score 213 · Answer 14 · 2018-02-11 19:57:20

213

Views

How many possible ways of distributing 20 red balls and 20 blue balls among 4 students?

Published on 11 Feb 2018 - 19:57

score 60 · Answer 15 · 2018-02-12 05:21:44

60

Views

If $ϕ(h) = L − c_1h − c_2h^2 − c_3h^3 −$ ···, then what combination of ϕ(h) and ϕ(h/2) should give an accurate estimate of L?

Published on 12 Feb 2018 - 5:21

List Question

From 4 red, 2 green and 3 white balls, how many selections consisting of 7 balls are possible, if each colour must be represented at least twice?

How many numbers from $1$ to $99999$ have the sum of the digits $= 15$?

Finding the probability that the first ace appears on the $(n + 1)$st draw

How can I start this sum

Hamming Distance

Combinations from two different groups

how to calculate number of combinations of 3 letters and 5 numbers

Count of Total Number of Combinations of Vector Elements

How Many Combinations Are Possible (using 5 letters, groups of 12)?

Binomial Notation Expansion

What is the number of all the possible passwords when someone say(verbally) password is 12345678.

minimum number of combination-pairs, without replacement, to ensure a value appears

Game of tickets

How many possible ways of distributing 20 red balls and 20 blue balls among 4 students?

If $ϕ(h) = L − c_1h − c_2h^2 − c_3h^3 −$ ···, then what combination of ϕ(h) and ϕ(h/2) should give an accurate estimate of L?

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