What number replaces the question mark?
72 99
\ /
27 45
\ /
18 39
\ /
21 36
\ /
? 28
\ /
13 21
\ /
7
Cheers,
Julian F. G. W.
Thanks to Anonymous,bruncher,niord,gvonge,Shelford, for Donating to support the site
72 99
\ /
27 45
\ /
18 39
\ /
21 36
\ /
? 28
\ /
13 21
\ /
7
robbelg wrote:Are you sure you mean 7 at the bottom?
Gengulphus wrote:robbelg wrote:Are you sure you mean 7 at the bottom?
I assume you're thinking that it should be 8 at the bottom, in which case a reasonable answer would be 15. But with 7 at the bottom, there is also a reasonable answer, which I've worked out, and it isn't 15.
No guarantees of course that it's the only reasonable answer - there could in principle be a dozen or more... ;-)
Gengulphus
Gengulphus wrote:robbelg wrote:Are you sure you mean 7 at the bottom?
I assume you're thinking that it should be 8 at the bottom, in which case a reasonable answer would be 15. But with 7 at the bottom, there is also a reasonable answer, which I've worked out, and it isn't 15.
No guarantees of course that it's the only reasonable answer - there could in principle be a dozen or more... ;-)
Gengulphus
BobbyD wrote:The intended answer is like a well written crossword clue, when you see it you will know it, and probably kick yourself in the shins for not seeing it earlier.
UncleEbenezer wrote:That's the point where you post clues.
jfgw wrote:What number replaces the question mark?
.
robbieg wrote:Are you sure you mean 7 at the bottom?
Gengulphus wrote:No guarantees of course that it's the only reasonable answer - there could in principle be a dozen or more
UncleEbenezer wrote:That's the point where you post clues.
Gengulphus wrote:
If you want another clue, look at what the various entries in the 'tree' are divisible by. That won't give you the complete pattern, but there's enough of a pattern to it to hopefully set you on the right track.
Gengulphus
redsturgeon wrote:Gengulphus wrote:If you want another clue, look at what the various entries in the 'tree' are divisible by. That won't give you the complete pattern, but there's enough of a pattern to it to hopefully set you on the right track.
That is completely irrelevant to the correct answer
redsturgeon wrote:Gengulphus wrote:
If you want another clue, look at what the various entries in the 'tree' are divisible by. That won't give you the complete pattern, but there's enough of a pattern to it to hopefully set you on the right track.
Gengulphus
That is completely irrelevant to the correct answer
John
Itsallaguess wrote:Would an appropriate clue, given the tree-themed quiz, be to perhaps 'count the leaves'?
Itsallaguess
Itsallaguess wrote:Would an appropriate clue, given the tree-themed quiz, be to perhaps 'count the leaves'?
Itsallaguess
jfgw wrote:I suspect that most of you know the answer by now. Shall I post another clue or shall I just sum up how the problem is solved?
Julian F. G. W.
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