cosh
Clan Member
Posts: 30
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May 28, 2010 23:29:20 GMT -5
Post by cosh on May 28, 2010 23:29:20 GMT -5
There are quite a few words games so I thought we could give a math game a try. Go to this website www.random.org/playing-cards/Draw 4 cards from the 1 shuffled deck (not including jokers) Post the number of the cards, suite doesn't matter. Next poster will have to post the solution (include method) to the 4 cards that gives a arithmetic total of 24, and post the next set of 4 cards. Valid operations are the four basic arithmetic operations: addition, subtraction, multiplication, and division. No other operation is allowed, i.e. no raising things to powers, taking square roots, etc. For example: 8, 5, 2, 1 5-2= 3 8*3*1 = 24 OR 5-1 = 4 8-2= 6 4*6 = 24 1's correspond to Aces, and 11-13 corresponds to J - K. If the card combination doesn't seem to have a solution, someone can repost a new combination. To start with: Q, 4, 9, 3 Additional things of note: All cards must be used. A card can only be used once. Fractions ARE allowed and encouraged!
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May 31, 2010 20:31:18 GMT -5
Post by sirinnu on May 31, 2010 20:31:18 GMT -5
12 / 4 = 3
3 * 9 = 27
27 - 3 = 24
hope it works!
Fun numbers game!
my cards are:
9 5 9 2
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Bre'Cheye
Honored Warrior
HW5
ussta zhennu ventash'ma zhah ussta zhennu abbil... My Great Leader is my Great Friend!
Posts: 8,369
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Jun 1, 2010 10:35:19 GMT -5
Post by Bre'Cheye on Jun 1, 2010 10:35:19 GMT -5
Sirinnu's numbers: 9 5 9 2
9x5=45 9x2=18 45-18=27
(I lose)
A,6,2,6 (the rest seems WAY over my head)
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Jun 1, 2010 11:45:35 GMT -5
Post by sirinnu on Jun 1, 2010 11:45:35 GMT -5
Nice try bre, , u are close, yours are easy though : 1 + 2 = 3* 3* X 6 = 18 18 + 6 = 24 go get some food and try again to solve mine bre 9, 5, 9, 2 (Or someone else....)
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Bre'Cheye
Honored Warrior
HW5
ussta zhennu ventash'ma zhah ussta zhennu abbil... My Great Leader is my Great Friend!
Posts: 8,369
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24
Jun 2, 2010 18:42:15 GMT -5
Post by Bre'Cheye on Jun 2, 2010 18:42:15 GMT -5
I have tried every combination I can think of and the closest I can get is 23 or 25.
So...
I have drawn a new hand, lets see if anyone can do this one:
K, 2, Q, 4
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LifeIsPain
Clan Member
HW4
1,000+ Dragons Bribed!! ;)
Posts: 554
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24
Jun 2, 2010 19:02:18 GMT -5
Post by LifeIsPain on Jun 2, 2010 19:02:18 GMT -5
Sirinnu's Cards: 9, 9, 5, 2 9*5= 45 45/2= 22.5 5/2= 2.5 22.5+ 2.5 = 25 2/ 2 =1 25- 1= 24 Bre's Cards: K(13), Q(12), 2, 4 13x2 = 26 -2 = 24 or 12x2 = 24 My cards: 3, 2, 7, 7
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Jun 2, 2010 19:31:49 GMT -5
Post by Gawayn on Jun 2, 2010 19:31:49 GMT -5
Wordsmith playing with numbers - watch out!
7 + 3 = 10* 7 x 2 = 14*
10* + 14* = 24
Fun! ;D
My cards: K,9,10,3
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Jun 2, 2010 19:40:19 GMT -5
Post by sirinnu on Jun 2, 2010 19:40:19 GMT -5
nice to see more peops joining math fun here!
though, lip I tough we had to use ALL the cards, without using twice the same one to reach 24 (without fractions), , but I was may be wrong, , we'd have to ask the game master about it, , where is cosh?
I'll let someone else solve gawayn's hand, , looks hard
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cosh
Clan Member
Posts: 30
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24
Jun 2, 2010 20:06:28 GMT -5
Post by cosh on Jun 2, 2010 20:06:28 GMT -5
Hi guys
Its nice to see people warming up to this thread
to answer sirinnu's question, you have to use all the cards, and a card can only be used once. Fractions ARE allowed, you're just using division, so you're not breaking any rules. So I encourage the kind of thinking LIP is using it, b/c it helps solve many combinations that are otherwise impossible.
Gawayn's hand:
9*3 = 27 13-10 = 3
27 -3 = 24
I believe sirinnu's hand does not have a solution. I still have to work at Bre's hand a bit.
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Jun 2, 2010 20:09:22 GMT -5
Post by sirinnu on Jun 2, 2010 20:09:22 GMT -5
thanks for being here and answering cosh
*exalts*
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cosh
Clan Member
Posts: 30
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Jun 2, 2010 21:01:35 GMT -5
Post by cosh on Jun 2, 2010 21:01:35 GMT -5
sirinnu and bre, I believe that both of your hands do not have solutions.
While it's easy to prove that a hand has a solution simply by finding one, it's harder to prove that a hand doesn't have a solution. There are 30,720 permutations of operators and numbers, and I've gone through them all without a solution. If anyone is curious about the reasoning I'll try to explain, just contact me. I'm re-posting these hands if anyone wants to take a stab at them:
Unsolved: 9, 9, 5, 2
K, 2, Q, 4
To encourage thinking of fractions, I'm posting this combination, which can only be solved using fractions:
5,5,5,1
Anyone who solves this first gets a well deserved exalt!
Good day guys.
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Varn
Paladin
Posts: 1,842
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Jun 3, 2010 0:14:35 GMT -5
Post by Varn on Jun 3, 2010 0:14:35 GMT -5
i can't get the 5,5,5,1 solution
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Jun 3, 2010 15:37:31 GMT -5
Post by Dragon_Stalker on Jun 3, 2010 15:37:31 GMT -5
5,5,5,1 5/5 = 1 1+1 = 2 5+5+2 = 12 12x2 = 24 I fail at this so I'm probably waaaay off Maybe another solution is: 5*5 = 25 5/5 = 1 25-1 = 24 Im confused but this seems fun enough to try
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Jun 3, 2010 15:42:57 GMT -5
Post by Dragon_Stalker on Jun 3, 2010 15:42:57 GMT -5
9, 9, 5, 2 Gotta try this one 5^2 = 25 9/9 = 1 25 - 1 = 24
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cosh
Clan Member
Posts: 30
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24
Jun 3, 2010 21:53:59 GMT -5
Post by cosh on Jun 3, 2010 21:53:59 GMT -5
5,5,5,1 Maybe another solution is: 5*5 = 25 5/5 = 1 25-1 = 24 Im confused but this seems fun enough to try This is close... you're on the right train of thought. However each number can only be used once. In the meantime, how about this: J, K, 8, 4
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