Question

Recompute expected value of the sum of value of five face down cards when the lowest value card is replaced by a new face down card

score 631 · Answer 1 · 2026-03-25 06:30:19

631

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Recompute expected value of the sum of value of five face down cards when the lowest value card is replaced by a new face down card

Published on 25 Mar 2026 - 6:30

score 82 · Answer 2 · 2019-02-14 17:40:12

82

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How to find the number of different existing routes in a problem where there is a maze of interconnecting lines?

Published on 14 Feb 2019 - 17:40

score 98 · Answer 3 · 2026-04-10 11:31:17

98

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Is it possible to know the result of a match between three teams with only knowing their goals for and goals against?

Published on 10 Apr 2026 - 11:31

score 886 · Answer 4 · 2026-03-29 13:53:47

886

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What's the probability that picking $3$ coins from a bag containing all coins from $1$ cent through $2$ euro will yield a total of $80$ cents?

Published on 29 Mar 2026 - 13:53

score 114 · Answer 5 · 2019-02-18 07:53:04

114

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puzzles of probabilities

Published on 18 Feb 2019 - 7:53

score 48 · Answer 6 · 2019-02-19 16:21:09

48

Views

Stacked Conditional densities

Published on 19 Feb 2019 - 16:21

score 235 · Answer 7 · 2026-04-10 05:54:13

235

Views

Two doors, each either trapped or safe, have signs whose truth depends on certain circumstances. Each sign reads "Both doors are safe".

Published on 10 Apr 2026 - 5:54

score 419 · Answer 8 · 2026-04-10 22:16:12

419

Views

Minimum number of steps in water measure problem

Published on 10 Apr 2026 - 22:16

score 155 · Answer 9 · 2026-04-11 10:34:39

155

Views

How to solve this problem raven matrices problem?

Published on 11 Apr 2026 - 10:34

score 499 · Answer 10 · 2026-04-10 17:02:48

499

Views

Valid Megaminx Patterns

Published on 10 Apr 2026 - 17:02

score 73 · Answer 11 · 2026-04-10 23:44:25

73

Views

How to compute the different number and ways to read a given phrase forming a pile or a stack?

Published on 10 Apr 2026 - 23:44

score 191 · Answer 12 · 2026-04-11 07:41:05

191

Views

Can this puzzle be solved mathematically?

Published on 11 Apr 2026 - 7:41

score 934 · Answer 13 · 2019-02-23 14:52:50

934

Views

Number of ways the room can be tiled with $I$ shaped and $L$ shaped tiles

Published on 23 Feb 2019 - 14:52

score 117 · Answer 14 · 2026-03-25 09:51:14

If $\, 5$ & $4\to 100$ , $8$ & $5 \to 400$ , $2$ & $19 \to 361$ , $A$ & $5 \to 625$ , $12$ & $3 \to 324$ , $7$ & $6 \to 441$ ; then $A=?$

score 387 · Answer 15 · 2026-03-25 09:53:30

387

Views

If $5 * 5$ = $10$ , $66$ = $18$ , $77$ = $36$ ; then $7* 8$ =?

Published on 25 Mar 2026 - 9:53

List Question

Recompute expected value of the sum of value of five face down cards when the lowest value card is replaced by a new face down card

How to find the number of different existing routes in a problem where there is a maze of interconnecting lines?

Is it possible to know the result of a match between three teams with only knowing their goals for and goals against?

What's the probability that picking $3$ coins from a bag containing all coins from $1$ cent through $2$ euro will yield a total of $80$ cents?

puzzles of probabilities

Stacked Conditional densities

Two doors, each either trapped or safe, have signs whose truth depends on certain circumstances. Each sign reads "Both doors are safe".

Minimum number of steps in water measure problem

How to solve this problem raven matrices problem?

Valid Megaminx Patterns

How to compute the different number and ways to read a given phrase forming a pile or a stack?

Can this puzzle be solved mathematically?

Number of ways the room can be tiled with $I$ shaped and $L$ shaped tiles

If $\, 5$ & $4\to 100$ , $8$ & $5 \to 400$ , $2$ & $19 \to 361$ , $A$ & $5 \to 625$ , $12$ & $3 \to 324$ , $7$ & $6 \to 441$ ; then $A=?$

If $5 * 5$ = $10$ , $66$ = $18$ , $77$ = $36$ ; then $7* 8$ =?

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