Solve It T2

[Lady Bump]

Ok here it is and just to note i got stuck with this one



I know how much you all loved the last scales puzzle. I have come across another. This one looks very simple, give it a go.

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You know that any parcel that you will need to weigh with the old fashioned pair of scales provided to you by the intergralian post office has to be an exact whole number (an interger) of 81kg or less.
If in addition, you are allowed just four weights, which ones should you choose to be sure of being able to determine unambiguously the weight of any parcel you are given to weigh ?


good luck

[Little Angel]

So i need to be able to weigh any parcel under 81kg using only 4 weights?

[Lady Bump]

So i need to be able to weigh any parcel under 81kg using only 4 weights?

Yep and its not real hard actually,:w7:

[Little Angel]

Can you use those weights more than once?

[Lady Bump]

no 4 different weights:laughing: thought you had the answer already there for a minute. was gonna give you a box of roses:3rofl3: :3rofl3: :3rofl3:

[Little Angel]

Thats impossible:3rofl3::3rofl3::3rofl3:

So, i cant use say a 1kg twice along with 3 other types of weights?

[Lady Bump]

Thats impossible:3rofl3::3rofl3::3rofl3:

So, i cant use say a 1kg twice along with 3 other types of weights?


No that easy megan:3rofl3: :3rofl3:

[Kitkat]

what are the sizes of the weights supplied

[Lady Bump]

what are the sizes of the weights supplied


just ask me the answer why don't you kat:3rofl3: :3rofl3: :3rofl3: :3rofl3:

[Kitkat]

:w7: :w7: :w7: :w7: will you tell me:3rofl3: :3rofl3: :3rofl3: :3rofl3:

[Lady Bump]

:w7: :w7: :w7: :w7: will you tell me:3rofl3: :3rofl3: :3rofl3: :3rofl3:

Whats it worth:16wink: will have to be good:3rofl3: :3rofl3: :3rofl3:

[Kitkat]

you need 1, 2, 5 & 10 kg weights - add them up and you get 18 kg, now look at the number in a mirror and you get 81 kg.

Smart aren't I :MISSIN~18 :MISSIN~18 :MISSIN~18

[Lady Bump]

you need 1, 2, 5 & 10 kg weights - add them up and you get 18 kg, now look at the number in a mirror and you get 81 kg.

Smart aren't I :MISSIN~18 :MISSIN~18 :MISSIN~18


get to the corner and put the pointed hat on:3rofl3: :3rofl3: :3rofl3:

[Kitkat]

:15saywha: what have I done now:3rofl3: :3rofl3: :3rofl3: :3rofl3:

[Julia]

thats clever hahahah

[Lady Bump]

but A couple of numbers there Id work with

[Little Angel]

:3rofl3::3rofl3::3rofl3::3rofl3::3rofl3::3rofl3:
Thats a better answer than ive come up with Kat:thumb:

[Julia]

got to go night night by

[Kitkat]

thats clever hahahah

thank you:blush:

[Kitkat]

ok an other shot - 1, 10, 20, and 50 kg weights

[Lady Bump]

adds up but not the answer Ive got:w7:

[Kitkat]

this is like playing 20 questions:3rofl3: :3rofl3: :3rofl3: and any weights the same size

[Lady Bump]

this is like playing 20 questions:3rofl3: :3rofl3: :3rofl3: and any weights the same size

no all different ..two of them have been mentioned:w7:

[Kitkat]

:headscrat which two:shrug:

[Lady Bump]

can't remember now:laughing:

[Little Angel]

Theres gotta be a trick to it.
Allowed to round whole numbers?:grin:

[Lady Bump]

no trick, but can see you rounding up rocks from the garden tomorrow to work it out:3rofl3: :3rofl3: :3rofl3: :3rofl3:

[Kitkat]

next guess

1, 5, 25 and 50

[Little Angel]

1kg 10kg 20kg 60kg

[Lady Bump]

You know that any parcel that you will need to weigh with the old fashioned pair of scales provided to you by the intergralian post office has to be an exact whole number (an interger) of 81kg or less.
If in addition, you are allowed just four weights, which ones should you choose to be sure of being able to determine unambiguously the weight of any parcel you are given to weigh ?

Nope youd better study again:w7:

[Kitkat]

easy - if the parcel cannot be weight accurately by one the weights I have mentioned - its free:Bolt:

[Lady Bump]

easy - if the parcel cannot be weight accurately by one the weights I have mentioned - its free:Bolt:

cheapskate:3rofl3: :3rofl3: :3rofl3:

[Kitkat]

generous to the customer:14clap: :14clap:

[Little Angel]

Its completely impossible. You can never get to every single weight using 4 weights unless using the same weight more than once..

Can you?:3rofl3::3rofl3:

[Lady Bump]

start with the most obvious and simple way to solve the problem
Hmm 80kg, that would be 40kg, 20kg, 10kg, 5kg and ........

[Kitkat]

:icon_offt I don't think Aussie post would let you send a parcel that weights 81 kg. Work Place Health and Safety have a limit on the amount of weight a person can safely carry. Thinks its 20 kg:MISSIN~18

[Lady Bump]

:icon_offt I don't think Aussie post would let you send a parcel that weights 81 kg. Work Place Health and Safety have a limit on the amount of weight a person can safely carry. Thinks its 20 kg:MISSIN~18

They do own trolley jacks you know:w7:

[Little Angel]

But if you chose those, you couldnt weigh say a 24kg package.

[Little Angel]

Easiest way to solve the problem would be me telling the customers to go to another post office, i can only weigh up to 4kg items...1kg,2kg,3kg and 4kg:14clap:

[Kitkat]

They do own trolley jacks you know:w7:

Against union rules:MISSIN~18

[Lady Bump]

Easiest way to solve the problem would be me telling the customers to go to another post office, i can only weigh up to 4kg items...1kg,2kg,3kg and 4kg:14clap:


oh.. I haven't got enough to get the resolution down to solve the problem. I can't tell the difference between 1,2,3,4kg, so I'll start here and work out how to distinguish between just these four.

[Little Angel]

The answer isnt Kilos, Grams, Pound & Ounce is it?:3rofl3::3rofl3:

[Kitkat]

Megan, I wonder if we are meant to take this thread seriously - I'm starting feeling the big stick of Ms Bumps big stick:14clap:

[Lady Bump]

came up with 3 combinations for just one weight.

parcel scale weight < = or > the direction of the scale tip
1 > 2
2 = 2
3 < 2

So the first weight is 2kg. next logical step is to use 4kg, then 8 then 16, but you find that you run out of weights again. So I need to extend the range of the second weight. I do this by manipulating the parcel's weight and putting the spare weights on the other side of the scale like this.

4(+2) = 6
5(+2) < 6
6 = 6
7 < 6
8 = 6+2
9 < 6+2

and so I have doubled the range of the next weight.
And so I follow on with the next weight

last clue for tonight:3rofl3: :3rofl3: :3rofl3:

What you talkin about Kat Ive no big stick:laughing:

[Little Angel]

I'm starting to feel the headache coming on early tonight:3rofl3::3rofl3:

[Kitkat]

I thought I heard it tapping on my window:hairaiser :hairaiser

[Lady Bump]

think youre trying to get me to go look so you can see the answer:3rofl3: :3rofl3: :3rofl3:

[Kitkat]

More hints please:w7:

[Little Angel]

:yeahthat: one

[Lady Bump]

If I give you any more you will have all the answers:3rofl3: :3rofl3: :3rofl3:

[Little Angel]

Thats ok :shrug::3rofl3:

[Lady Bump]

10/10 for trying:3rofl3: :3rofl3:

[Little Angel]

I take that as a no then:laughing::laughing:

[Lady Bump]

If I was close Id:5smackbot

[Loopy]

You, guys have lost me..... my brain is all shook up:3rofl3: :3rofl3: :3rofl3: :3rofl3: :3rofl3: :3rofl3:

[Julia]

yep this puzzle hurts the brain we should have petz here so we can play for petz$

[Lady Bump]

Just the promise of a chocolate drives them into action Julia:3rofl3: :3rofl3:

[Little Angel]

Yes but the question is driving me around the bend at the moment:lmaoblue::lmaoblue:

[Loopy]

what is the puzzle again Miss Bumps:w7: :w7:

[Lady Bump]

You know that any parcel that you will need to weigh with the old fashioned pair of scales provided to you by the intergralian post office has to be an exact whole number (an interger) of 81kg or less.
If in addition, you are allowed just four weights, which ones should you choose to be sure of being able to determine unambiguously the weight of any parcel you are given to weigh ?





Thought Id mention willy wonkers on here tonight at 7,30 megan:3rofl3: :3rofl3: :3rofl3:

[Little Angel]

Hope you've got a huge supply there for me:grin:
Kat you there? Worked the puzzle out yet?:3rofl3:

[Lady Bump]

On tv megan I don't eat chocolate its bad for you:3rofl3: :3rofl3:

[Little Angel]

It's good for you..it has calcium:laughing:

[Lady Bump]

Not the answer:3rofl3: :3rofl3:

[Little Angel]

2kg,8kg,16kg & 34kg

[Lady Bump]

so so close can see youre working on it now:14clap: Have a mintie to keep you going:dance:

[Little Angel]

Been on it all day :10tantrum:10tantrum:3rofl3:

[Lady Bump]

thought you had it for a minute had to go check the answer:3rofl3: :3rofl3:

[Little Angel]

2kg, 8kg, 16kg & 32kg

[Lady Bump]

wild stabs in the dark now:3rofl3: :3rofl3: :3rofl3:

[Little Angel]

2kg 8kg 16kg & 24kg:nut:

[Lady Bump]

2kg 8kg 16kg & 24kg:nut:

A bit short on that one better have another mintie

[Kitkat]

ok - I've just been next door and ask the :nerd: maths wiz and he says it's not possible - I win :party2: :party2: :party2: :party2: - you loose - cholcolates please:3rofl3: :3rofl3: :3rofl3: :3rofl3:

[Lady Bump]

tell him to go back to school ..youre not getting the chocolates that easy:3rofl3: :3rofl3: :3rofl3: :3rofl3: didn't come down in the last shower:dance:

[Kitkat]

:grump: there won't be any left :3rofl3: :3rofl3: :3rofl3:

[Lady Bump]

I know :14clap: Im onto the hard centres now:w7: Don't worry megan is pounding away on her calculator Im sure she'll have the answer by morning:3rofl3: :3rofl3: :3rofl3:

[Kitkat]

I'd better send some replacement batteries:3rofl3: :3rofl3: :3rofl3:

[Lady Bump]

Think she'll need a new wigtoo.. reckon shes tore all her hair out now:3rofl3: :3rofl3: :3rofl3:

[Kitkat]

:lmaoblue: :lmaoblue: :lmaoblue: :lmaoblue: you'd better give another clue - wigs are expensive:spin:

[Lady Bump]

The next clue is the answer.. already gave you 3 of them if you had read the clues:3rofl3: :3rofl3: :3rofl3: only one more number missing

[Kitkat]

over to you Megan:!!!!yello

[Lady Bump]

What happened to your maths mate:3rofl3: :3rofl3:

[Little Angel]

2kg, 6kg, 18kg & 54kg

[Lady Bump]

Well done Megan but missed out on the willy wonka its been a long day here and I got hungry:laughing:

Your turn to put one up:thumb:

[Little Angel]

Might need to get a few questions from Julia, let you guys go:!!!icon41 for a couple days:3rofl3::3rofl3::3rofl3:

[Lady Bump]

kept you out of trouble though hasn't it:3rofl3: :3rofl3: :3rofl3:

[Little Angel]

Me trouble?:angel2::angel2::3rofl3:

[Little Angel]

I have five letters.
If you take the first and last,
I will still be the same.
Even if you take the middle letter,
I will be the same as before.
What am I?

[Lady Bump]

Ok I working on it:w7: whats the prize, make it good now:laughing:

[Little Angel]

:HMMSMI~19 Half a chico baby and half a licorice bullet:14clap:

[Lady Bump]

Big hearted I must say:3rofl3: suppose the bullet is minus the chocolate as well:laughing:

[Little Angel]

Of course:14hah::3rofl3::3rofl3::3rofl3:

[Julia]

a post box

[Little Angel]

Nope..You still have 3 life lines:laughing:

[Lady Bump]

I have five letters.
If you take the first and last,
I will still be the same.
Even if you take the middle letter,
I will be the same as before.
What am I?


Ok Ill sleep on it:huge: must be kats turn to solve one anyway:laughing:

[Julia]

so not a letter box ?? hmmm

[Little Angel]

Nope.

[Lady Bump]

First letter:w7:

[Little Angel]

E

[Bugs]

o