| Title: | Mathematics at DEC |
| Moderator: | RUSURE::EDP |
| Created: | Mon Feb 03 1986 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 2083 |
| Total number of notes: | 14613 |
I usually don't like problems that says "find the next number" or "where
does the next number go", but I read this one somewhere and I really
like it.
The numbers are divided into three groups as follows: 0, 3, 6,
8, 9,..., in the first group, 1, 4, 7, 11, 14,..., in the second
group, and 2, 5, 10, 12, 13,..., in the third group. Now the question
is where do the numbers 15, 16 and 17 go?
Eugene
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 1059.1 | a feeble attempt: | SLDA5::DUNAISKY | Out of the frying pan, into the | Thu Apr 13 1989 21:35 | 9 |
my guess...
0 3 6 8 9 15
1 4 7 11 14 16 17
2 5 10 12 13
Jonathan
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| 1059.2 | HPSTEK::XIA | Thu Apr 13 1989 21:59 | 5 | ||
re -1
Sorry wrong.
Eugene
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| 1059.3 | clue, please | BEING::RABAHY | dtn 381-1154 | Fri Apr 14 1989 10:48 | 1 |
Does the grouping depend on the decimal radix representation? | |||||
| 1059.4 | Transformed problem | BEING::RABAHY | dtn 381-1154 | Fri Apr 14 1989 11:04 | 3 |
What's the next number in the following sequence? 0, 1, 2, 0, 1, 2, 0, 1, 0, 0, 2, 1, 2, 2, 1, ... | |||||
| 1059.5 | HPSTEK::XIA | Fri Apr 14 1989 11:36 | 5 | ||
re .3
Well, sort of, but in a very creative way.
Eugene
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| 1059.6 | Far from Rome | NIZIAK::YARBROUGH | I PREFER PI | Tue Apr 18 1989 12:01 | 8 |
Solution follows the <FF>. The first group are made up of numbers with curved Arabic representations; the second group with Arabic representations composed of straight lines; the third group is mixed. So 15 and 16 belong in the mixed group; 17 in the straight group. - Lynn | |||||
| 1059.7 | HPSTEK::XIA | Tue Apr 18 1989 13:04 | 3 | ||
re -1
That is correct!
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