Countdown - Monday 14th October 2002 - Part 4 Of 4

[PhillBlackwell]

Daaaaaaaaaaaaaaaaaaaaaaayyyyyy­yyyyyyyyyyyymmmmmmmmmmmooooooo­ooooooooooooooooooooooooooo!!!­!!!!!!!!!!!!!!!!!!!!

;-)

[Jdog7117]

Hmm, youtube won't let me post them in here, I'm sending you a PM with the answers. Yep thats one of them, I'll also let you know that these two are the only ones.

[Jdog7117]

Well, I decided to finally write my program to output all answers to a problem. More precisely, it outputs (almost) every syntactical way of writing each solution. So you have to then trim out all the duplicates. So to answer your question about how many solutions, 8. I removed all the different ones that were basically different ways of rearranging the same mathmatical statement, or at least my opinion of what was different. For Example to me, (9-8) + 10 + 6 is the same as 8+9

[timwiddows]

Is Tangoes a word?

[kitkaddy]

and my teacher as well rob :P ahah im a bit late on seein it but o well :P x

[MrRobbo246]

paul daymond is my gcse p.e teacher. what a ledgend, he is going to get a grilling on monday!

[Jdog7117]

Crazy solution to the numbers game:

((50*75) - 100)/25 = 146

146 * (10 - 7) = 438

[cwn89015]

@Jdog7117 On October 11th part 3 of 4, is 277 possible? I can't even get 275 with the ways I have bben doing it.

[Jdog7117]

@cwn89015 277, 1 8 9 9 10 75. Nope. This set of numbers in unusual in how many low targets are impossible. 274 - 278 are all impossible. Best you can do is 279 = ((((75 - (9 * 8)) * 10) + 1) * 9).

[cwn89015]

@Jdog7117 I must trust you on that one, but Why is it that you put so many parentheses at first? Issee it in at least a couple of your posts. Unlees it is a new math term I'm not aware of, It isn't needed.

[Jdog7117]

@cwn89015 I put them in to make it clear in one line what the answer is. Also, because I'm lazy and I'm copying the output directly from my program.

[cwn89015]

@Jdog7117 Oompa Loompas say it this way, "I've got another puzzle for you." On the episode from series 58 match 31, part 3 has a numbers puzzle that calls for a target of 935. Tim, who ultimately got it was one away, and I am getting the solid rock confidence that it is impossible given the rules. Am I right?

[Jdog7117]

@cwn89015 5 6 8 9 10 50 - 935. There are actually several ways of doing this one, but believe it or not there is a four number answer! Theres also at least one difficult way of doing it with six. Try to find one or both :)

[cwn89015]

@Jdog7117 Here's the 4 number answer, courtesy of keeping on looking and getting a spark of not giving up from a good source, not my mom or dad or any friend. It was me who wrote it down, and I have itfor you now:

50+5=55,

8+9=17,

55x17=935.

Thank you. You gave me a challenge and although the stream of evil could have had me give up and come to you whining for the answer, I didn't. I continue to look for the six and maybe some other ways.

[cwn89015]

@Jdog7117 Found a way of doing it also with six, though knowing you, it isn't the "difficult six":

8+9=17,

17x5=85,

50/10=5,

5+6=11,

85x11=935.

[cwn89015]

@Jdog7117 On this next one, I used the internet to see if 187 was a prime number, and come to find out it isn't, it has 11 and 17. I will share the other 6 way:

5+6=11,

8+9=17,

17x11=187,

50/10=5,

187x5=935.

[cwn89015]

@Jdog7117 Didn't find it yet, but here is another way of doing it:

5+8=13,

50+13=63,

9+6=15,

63x15=945,

945-10=935.

I'll keep working and maybe you can try it my way. You don't have to.

[Jdog7117]

@cwn89015 I'm impressed with how many solutions you're finding. I'm not sure how to answer your question but another hint is that you multiply 3 numbers together, add them to 2 numbers multiplyed together, and add the last one .

[cwn89015]

@Jdog7117 I'm working on it, but another one I fiound is this:

9x6=54,

54x10=540,

50x8=400,

540+400=940,

940-5=935.

[cwn89015]

@Jdog7117 I hope this is it:

6x8=48,

48x10=480,

50x9=450,

480+450=930,

930+5=935.

Took me a while, but it happened. Was I right?

[Jdog7117]

@cwn89015 That was it. Well done!

[cwn89015]

@Jdog7117 5 solutions. Is that all of them?

[Jdog7117]

@cwn89015 I don't know, my program only gives me one, i would have to change it to return multiple solutions. Sometimes (as in the one you just asked about) I can fiddle with things like the order I enter the numbers into the program. That causes it to find one solution before it finds a different solution, so I can find out more than 1.

That problem has at least 2 different ways of doing it. Once again I'll let you try to solve it. Let me know if you need hints :).

[cwn89015]

@Jdog7117 Also, on Wednesday May 20th, 2009, Part 4 of 4, is 815 possible?

[Jdog7117]

@cwn89015 Yea carol is mistaken when she said she got 275

[cwn89015]

@Jdog7117 A pesturing here, but on series 58 match 17, part 4, is 720 at all possible?

[Jdog7117]

@cwn89015 That one is impossible, terrible numbers (357/900) impossible. Well you came up with valid 6 number solutions I didn't find (right now my program only spits out one although i can hack it to get others sometimes. Might improve it at some point). The other 6 way is a very different solution not just rearranging the 17*55. I can tell you it if you want, but I'll give you a hint. It involves only multiplication and addition. Keep asking me about them, I like these puzzles.

[cwn89015]

@Jdog7117 Is 50 part of the adding?

[cwn89015]

@Jdog7117 One solution of getting 815 is this:

8x9=72,

72+2=74,

74x11=814,

814+1=815.