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#1 User is offline   rookie1ja Icon

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Posted 30 March 2007 - 07:20 PM

The Number Puzzle - Back to the Number Puzzles
The grid below is to be filled with six numbers (3 vertical and 3 horizontal) from the given list. You can use each number more than once. After completing the number puzzle sum up all digits in the grid. This is defined as the score. What is the maximum possible score?

the grid and available numbers
Attached File  puzzle.gif (2.08K)
Number of downloads: 1122

Example: Using the numbers 40067 04802 78215 twice
Attached File  puzzleexample.gif (936bytes)
Number of downloads: 1128

The score is 73 (of course other solutions with higher scores are possible).



Spoiler for Solution:
The Number Puzzle - solution
This one is not verified – I used 2 numbers 39543 and 89398. And this is what the grid looks like:

Attached File  number-solution.gif (2.37K)
Number of downloads: 1128

So the total score is 147.

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#2 User is offline   Riddari Icon

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Posted 22 August 2007 - 12:14 AM

Interesting puzzle. It would have been quite a bit easier if I could have cut and pasted the values. As it is, I had to type them all in manually. No biggie, though.


Spoiler for ...:
I got the same answer by summing all the sets, picking the one with the highest value, then moving down the list to find the highest numbers that fit.

After seeing that Rookie had not verified the answer, I decided to try to put the numbers in a database and use a select to find all the possible combinations.
Unless I goofed up somewhere, there are only 40 possible combinations.
Rookie’s answer is the highest.
The next best is 125 points for 52998, 90073, and 89398.
The lowest value is 38 points for 50221, 20420, and 11045.

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#3 User is offline   Wordblind Icon

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Posted 23 August 2007 - 04:55 AM

Interesting, but the infinite use rule and the number choice made it a little easy to spot.


Spoiler for ...:
Even without using a computer, it isn't too hard to verify.
First, score the likeliest numbers: (A+2B+C+2D+E)/2
1. 89398 scores 27.5
2. 48195 scores 22
?. 39543 scores 18.5
Even six uses of the 2nd place number wouldn't be produce enough points:
4*27.5+2*18.5=147
6*22=132

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