Another IQ question!

last SG · 2008-11-28T00:02:45+00:00

lol i a bit bo liao...1) She is took a photo of her bro, put under developing and hang to dry and bring her bro to eat at Mac.

nehpyh SG

Hi all,

gunner77 SG

throw each into water

measure the volume

the one with the most volume increase is the heavy one

nehpyh SG

throw each into water

measure the volume

the one with the most volume increase is the heavy one

Er..thanks.....please use the tools given.

gunner77 SG

wats cetera peribus?

nehpyh SG

wats cetera peribus?

Everything else constant.

Gambate Kudasai!

FirePig SG

Split into group of three, three, two.

Weigh the 3 against the other 3.

If balanced. weigh the remaining 2 1 vs 1.

If not balanced, take out the group of 3 which is heavier. Take out any 2 out of 3 and weight.

EarlNeo SG

I assume itis a balance weight that u are talking abt. as in those with 2 tray on each side.

sperate the ball into group of 3, 3 and 2.

weight the two group of 3 balls on each tray. If balance, weight the other 2.

else not blance, take the group of 3 balls (heavier gp) and put one on each tray and leave the remaining one out.

If not blance, u got ur answer. Else if balance, the remaining one is the heavy one

gunner77 SG

weight the ball one by one

after weighing the 1st ball add another one

record the increase, all the increse should be constant except for one ball where the increase is more than the rest recorded.

EarlNeo SG

u shd actually ask that question with 9 balls instead of 8...

skythewood SG

u shd actually ask that question with 9 balls instead of 8...

asking 9 will give the idea of 3 sets of 3.

8 disguises the idea

ad3285 SG

Ya 9 balls is harder than 8 balls.
Firepig gave the answer for 8 balls liao

ad3285 SG

Hmm actually 9 ball also not that hard also. Come to think of it :x

EarlNeo SG

why dun we make it harder.... as in how many time do u have to weight to find that balls with the abnormal weight. Meaning u duno if that one different ball is heavier or lighter.

say for 8balls and for 9 balls or even for 10 balls

skythewood SG

why dun we make it harder.... as in how many time do u have to weight to find that balls with the abnormal weight. Meaning u duno if that one different ball is heavier or lighter.

say for 8balls and for 9 balls.

how about you can only weigh 4 times for 80 balls?

EarlNeo SG

how about you can only weigh 4 times for 80 balls?

in theory, itis 9 balls for the last two weight. so meaning, u can have 3 gp of 27 for upto 4 times of weighing. meaning the max for 4 weight is 81 balls.

split it to group of 27 balls and then to group of 9balls and finally 3balls.

it only start getting interesting only when u duno if the balls is heavier or lighter.... then u need to mix the balls in the group up... that is where the fun start.

angel7030 SG

4. You only have 2 tries with the weighs to tell find out the heavier ball.

please stick by the rules

Zandermccoll SG

2 weighs and two tries with weighs..
Hm..

When you mean '2 weighs', do you mean 2 weighing scales? Or what

Ok ASSUMING it's two weighing scales..

1: Split 8 into 2 groups of 4 and use one weigh to weigh them against each other. Eliminate the lighter one.

2: Split the remaining 4 into two groups of 2 and simultaneously use the two weighs to weigh each group - 1 vs 1, 1 vs 1

The ball that tilts down lowest is the heaviest

But if 2 weigh is not = 2 weighing scales, then..
donch know

skythewood SG

in theory, itis 9 balls for the last two weight. so meaning, u can have 3 gp of 27 for upto 4 times of weighing. meaning the max for 4 weight is 81 balls.

split it to group of 27 balls and then to group of 9balls and finally 3balls.

it only start getting interesting only when u duno if the balls is heavier or lighter.... then u need to mix the balls in the group up... that is where the fun start.

yay. and so on and so forth.ya

angel7030 SG

2 weighs and two tries with weighs..
Hm..

When you mean '2 weighs', do you mean 2 weighing scales? Or what

Ok ASSUMING it's two weighing scales..

1: Split 8 into 2 groups of 4 and use one weigh to weigh them against each other. Eliminate the lighter one.

2: Split the remaining 4 into two groups of 2 and simultaneously use the two weighs to weigh each group - 1 vs 1, 1 vs 1

The ball that tilts down lowest is the heaviest

But if 2 weigh is not = 2 weighing scales, then..
donch know

again, u are weight it 3 x, more than 2x, game over.

Black Kettle SG

i have no eye-deer