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        riddles >> easy >> Target Practice (in your head)
        
(Message started by: Noke Lieu on Dec 8^th, 2004, 7:42pm)

Title: Target Practice (in your head)
Post by Noke Lieu on Dec 8^th, 2004, 7:42pm

Yes, you could very quickly find the answer with silicon help.
Where's the fun in that? (oh, there it is)

Just a simple couple, couldn't find a trace of them, but that's search function for you.

Willy Wutang goes to a fair. Nasty, number fiddling carnie folk everywhere. Walks up to a shooting gallery. Has a target:

16\_____/17
| 39 |
23/ _ \24

As many shots as he likes...
The aim is to get a sum of 100.
Else goto stair master (http://www.ocf.berkeley.edu/~wwu/cgi-bin/yabb/YaBB.cgi?board=riddles_easy;action=display;num=1084254000)

Seems that Langford Numbers have somehow escaped?
Okay, nice and easy... make sure there is one digit between two 1s, two digits between two 2s, three between 3s etc. so n=3 looks like 312132.
What does 5 look like? Pen and paper only, squires, until you're ready to submit the answer.

Title: Re: Target Practice (in your head)
Post by Foolish on Dec 9^th, 2004, 12:47am

I got the target practice one, onto the others :D

Title: Re: Target Practice (in your head)
Post by Icarus on Dec 9^th, 2004, 8:52am

I'm not sure I understand the situation for "target practice". The target appears to have 7 regions. 5 have the values 16, 17, 23, 24, 39. Of the other two regions, one is empty and one has a "-". Presumably the empty region is 0 points, but what is with the "-"?

Title: Re: Target Practice (in your head)
Post by rmsgrey on Dec 9^th, 2004, 9:19am

Target practice ::[hide]17*3=51, so 16,17,17 gives 50. Twice gives 100[/hide]::

The Fifth Langford Number ::[hide]Unless I've missed something in my careful list of cases, there isn't one[/hide]::

Title: Re: Target Practice (in your head)
Post by Noke Lieu on Dec 9^th, 2004, 3:55pm

on 12/09/04 at 08:52:32, Icarus wrote:

Presumably the empty region is 0 points, but what is with the "-"?

YaBB spacing issue... I couldn't be bothered drawing a picture. In hindsight, it would have been quicker...

rmsgrey, [hide] heh. you spotted it. Next value is? [/hide]

Title: Re: Target Practice (in your head)
Post by rmsgrey on Dec 10^th, 2004, 12:32pm

After posting, I did some online research, so disqualify myself from the follow-up question.