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Thread: Math Puzzel

20071118, 02:24 #1
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Math Puzzel
Hi
I have a math puzzle that I have been trying to solve for a very long time. Can someone look at it and help me with some sort of solution?
Example
I have only these 12 numbers and all numbers must be used only ONCE to create the two equations below, including the answer. No numbers can be left out or new numbers added.
1,2,2,3,3,4,4,5,6,7,8,9
1
+2
=3
879
644
=235
As you can see I used all of the numbers in the two equations above only once. . If there is a formula to use other than guessing, please can you let me know it?
Problem #1
I have only these 23 numbers and all numbers must be used only ONCE to create the four equations below, including the answer. No numbers can be left out or new numbers added.
1,1,1,1,2,2,2,3,3,3,4,4,4,5,5,6,6,7,7,8,8,9,9
X
Plus X
Equals X
X
Minus X
Equals X
X
Multiply X
Equals X
X
Divided By X
Equals X
Problem #2
I have only these 20 numbers and all numbers must be used only ONCE to create the four equations below, including the answer. No numbers can be left out or new numbers added.
0,0,0,0,1,1,1,1,1,1,1,1,1,2,3,3,5.6,8,9
X
Plus X
Equals X
X
Minus X
Equals X
X
Multiply X
Equals X
X
Divided By X
Equals X
Problem #3
I have only these 26 numbers and all numbers must be used only ONCE to create the four equations below, including the answer. No numbers can be left out or new numbers added.
1,1,1,1,1,1,1,1,1,1,1,1,1,2,2,2,3,4,4,5,6,7,8,8,9, 9
X
Plus X
Equals X
X
Minus X
Equals X
X
Multiply X
Equals X
X
Divided By X
Equals X
.This math puzzle came with a simple PC Game called Lionel Train Town.
Thank you for any and all the help you can give me. I have been trying to solve these problems for over six years.
Please ReplyCatz

20071118, 23:12 #2
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Re: Math Puzzel
Cut out as many pieces of paper as you have numbers, and write one of the numbers on each of the pieces.
Write the equations (without the numbers) on a large piece of paper.
You can now place the numbers on the large piece of paper and move them around trying to make the equations correct.

20071119, 01:05 #3
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Re: Math Puzzel
Thanks Hans. I will try that. Have you tried it? I even tried to contact the people who made the game and they never replied. Made me very sad. These three problems are the only three problems in that game that I have not completed.
Catz

20071119, 01:20 #4
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Re: Math Puzzel
Pauliez
It certainly is an evil puzzle, I tried a search for spoilers and nothing has become apparent and the games forums for that genre of puzzle appear empty <img src=/S/sad.gif border=0 alt=sad width=15 height=15>
Don't give up, I am have a go and certainly won't promise anything <img src=/S/sneaky.gif border=0 alt=sneaky width=15 height=15>Jerry

20071119, 10:06 #5
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Re: Math Puzzel
Thanks Jerry. Hope you have better luck. I have been trying for six years and will continue until I get them right. To me it is a goal before they close that coffin lid on me. <img src=/S/nuts.gif border=0 alt=nuts width=15 height=15>
Catz

20071127, 11:26 #6
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Re: Math Puzzel
Was bored so thought I'd have a go at this. There is no specific way of doing this, no unique results and no "formula" to work it out each time but a variety of ways to simplify things. Best quick tip is any thing divided by itself equals 1, therefore if you use small numbers for the add, subtract and multiply and keep 2 of each number and a 1 for the division it makes life simple.
I'll leave a few lines before my answer just incase you want to try yourself with the above tip.
Best of luck
John
Q1.
22 + 44 = 66
99  88 = 11
3 * 4 = 12
753 / 753 = 1
Q2.
8 + 2 = 10
61  50 = 11
3 * 3 = 9
110 / 110 = 1
Q3.
1 + 2 = 3
68  57 = 11
9 * 9 = 81
111124 / 111124 = 1