Question

There are nine balls. One is slightly lighter than the rest; the difference is small enough that you can't tell just by picking them up. Using a basic two-sided scale, what's the minimum number of times you'd need to weigh balls to guarantee you find the light one?

Answer 1

Well this is an annoying one O.o

Answer 2

Haha :) Try your best!

Answer 3

Pleaseee!

Answer 4

Hmm...well you could take 8 balls...4 on each side...and see if they are equal...if they are then you know the ball that isn't included would be the lightest one...

If they aren't....weigh the 4 that were lighter on the scale..

Now you will have 1 side definitely higher...so then weigh those 2...which would give you your answer

So I'm gonna say 3....if that makes sense

Answer 5

Haha nice what of putting it. But i think they would limit one ball per side.

Answer 6

I can't possibly think of a way to do it in 2 moves

Answer 7

This was so helpful, got me farther then i was before!

Answer 8

Well why would you say that...unless the problem were to state that each side can only take 1 ball at a time

Answer 9

Hmm Very true. It did not give a limit of how many. :)

Answer 10

Exactly :) So I am DEFIANTLY putting my answer of 3 :) lol

Answer 11

Haha…Are you sure?!?!.. Because if i get it wrong, i'm coming after you(jk)

Answer 12

O.o I'll lock the doors and say yes /.\ :P

Answer 13

;-; …(Inserts answer)

Answer 14

......(Waits to hide).......





/.o

Answer 15

…(still waiting)

Answer 16

The wait is killer! xD

I can only hide my face for so long ;P

/.\

But I can peek :D

\.o

Answer 17

\o.o/ Booooo!

Answer 18

You were kind of right..;/

Answer 19

There are other ways you could have done it.. but they are WAY too complicated.

Answer 20

O.O

Holy crap...WHATS WRONG WITH YOU!! ;P

Aww I wasn't right? Sorry hun :( where'd I go off-track?

*secretly locks door*

Answer 21

…(Is in your closet)

Answer 22

You were wrong! lol

Answer 23

....Oh good that's outside the room!! ;PP mwahahaha WIN! YOU LOSE! ;P

Although...I lose too...I was wrong! :( WAH!

Answer 24

...

Answer 25

Fine, ill just hide in your fridge… eating all of your foodddd

Answer 26

brb for a couple minutes hard hard problem

Answer 27

:OOO NOOO!!! That's the best place to hide!!! It's good in there!! :(( GET OUT! lol I'll make you dinner if you're hungry geez! lol

Answer 28

Lol, i havent eaten yet…( munches on some of your food)

Answer 29

It's funny how this started off with a math problem now your threatening to make me food..

Answer 30

Lmao...yeah...and it's a REAL threat too! Lol....well wait no...I actually cook so it is a ...good...threat?? Is that a thing?? lol OH WELL FEAR IT!!! ;D

Answer 31

Lol!

Answer 32

I can cook. kind of :p only if you want microwaved mac&cheese 7 nights in a row

Answer 33

That
Sounds
Amazing!

Haha okay that's settled...I want mac and cheese!

GIMME GIMME GIMME!!! :DD

Answer 34

… I K R.. just put shredded cheese on the roni's and bam your good to go!

Answer 35

.....Resourceful! haha....well then!....I still am not enjoying a big plate of mac and cheese!!! erhmm.....grr!! WHY ARE YOU IN MY FRIDGE AND YOU WONT GIMME THE FOOD!?

;P

Answer 36

*Throws le mac and cheese at you, secretly pours strange substance over it* >:D Enjoy..

Answer 37

Hahaha "le mac and cheese" xD

Takes bite.....chews once...

twice

Maybe a third time....

Okay I was hungry so I devour the whole plate...

:O I feel funny! .... :( ...WHAT DID YOU DO!?!?!?!

Answer 38

…It's my secret recipe, i can't tell you!! if i do then.. i'll be betraying my whole family and my great, great,great,great…-five minutes later- ..ancestors

Answer 39

But.....the secret...


is


killing me D: ....tell me you fiend!!

I only have .... -floor-


*nvm*

Answer 40

>:D Bahaha

Answer 41

Queen TILLY WINS Again!

Answer 42

*I can now HAUNT YOU!!!*

First stop! FRIDGE!!! ;P

Answer 43

…*turns le self invisible* sneaks away *-* You saw nothing...

Answer 44

Okay okay okay lets stop there....Invisible powers!?

-bows- You are the queen! O.O

Answer 45

like a boss :)

Answer 46

Lmao oh oh conceited queen Tilly! I only partially bow! Kneel! haha ;P

Answer 47

…I refuse!

Answer 48

*wraps leash around your fridge, walks away with it.*

Answer 49

I give you no CHOICE!!

:O Holy crap super strong!!! WHY ARE YOU AN ENTIRE SUPERHERO TEAM!!!

Answer 50

I have to goo sleep is getting to me..be on later

Answer 51

Aww :( But you were fun!! :(

Lol Go nap hun :) Maybe we'll talk again later :)

Answer 52

Lol. Okay!! The Queen needs her beauty sleep :)

Answer 53

You need beauty sleep? Nope! The beauty never goes away! :) Goodnight queen ;)